The abnormal chest radiograph is often perplexing, but abnormal findings can be interpreted easily with a systematic and methodical approach. The companion cases presented this month highlights two basic, but often forgotten or confused findings that have...

The author identifies the common abnormalities seen on the chest radiograph, then, through case examples, displays the different imaging modalities available to the clinician. The book outlines a diagnostic approach to both imaging and clinical aspects of chest diseases. Each chapter is followed by a summary. The ...

Computer Aided Detection (CADe) and Computer Aided Diagnosis (CADx) are relatively recent areas of research that attempt to employ feature extraction, pattern recognition, and machine learning algorithms to aid radiologists in detecting and diagnosing abnormalities in medical images. However, these computational methods are based on the assumption that there are distinct ...

Abnormalities in chest images often present as abnormal opacity or abnormal asymmetry. We have developed a novel method for automated detection of abnormalities in chest radiographs by use of these features. Our method is based on an analysis of the ...

The mediastinal lines visible at conventional radiography represent the interfaces between the mediastinum and adjacent lung parenchyma. Preservation, obliteration, thickening and distortion of these lines represent the key to detecting and localising mediastinal abnormalities on chest radiographs. The learning objectives of this ...

High levels of exposure to carbon black have been linked with an increased prevalence of chest radiograph abnormalities. However, it is unclear to what extent current levels of exposure in the carbon black manufacturing industry are associated with new cases of and progression in small opacities. Longitudinal analyses were carried out ...

ObjectiveThe purpose of this study was to evaluate the chest radiographic and CT findings of novel influenza A (H1N1) virus infection in children, the population that is more vulnerable to respiratory infection than adults.Materials and MethodsThe study population comprised 410 children who were diagnosed with an H1N1 infection from August 24, 2009 to ...

Frontal chest radiographs ("chest X-rays") are routinely used by medical personnel to assess patients for a wide range of suspected disorders. Often large numbers of images need to be analyzed. Furthermore, at times the images need to analyzed ("reported") when no radiological expert is available. A system which enhances the images in ...

Twenty-five patients had localization radiography before chest computed tomography (CT) for evaluation of pulmonary nodules, staging of lung carcinoma, or suspected metastatic disease. Evaluation of the localization radiograph and the 140 kVp frontal chest radiograph were performed independently and without history ...

Men working with zirconium compounds at one site in the North of England have been monitored since 1975 to evaluate effects on the lung of exposure (mainly < 10 mg/m3) over many years. Chest radiographs (in 1975, 1978, and 1982) and lung function measurements (from 1975-1988) were carried out on all men (178) known to have worked with the compounds and ...

These regulations concern chest X-ray examinations. Definitions are followed by provisions concerning chest radiographs of miners and new miners; plans and approval of plans for these examinations; transfer of affected miners to less dusty areas; occupational history questionnaire and miners' identification documents; ...

Plain chest radiographs of 788 Pilbara iron-ore miners from Western Australia have been examined by two independent observers for evidence of pneumoconiosis. The prevalence of any radiographic abnormality (a profusion grade of 0/1 or greater on the International Labour Office [ILO] scale) was 6.7% for Reader 1 and ...

Whole lung, frontal tomography is compared with frontal chest radiography in the diagnosis of pulmonary metastasis in children with cancer. Of 79 patients studied, 65 had a total of 195 routine tomograms. In only 2.7% of studies did tomography yield new information, and in only 1% was an additional lesion visualized. In 27 patients, tomography was performed after an ...

We compared the chest radiographic findings of patients with pulmonary paragonimiasis in the Lao People's Democratic Republic (PDR) with a report from Korea. The clinical and radiological characteristics of 50 confirmed Laotian pleuropulmonary paragonimiasis patients were studied between March 2003 and June 2007. In 49 patients, the ...

All screening radiographs of the chest and other medical records of 107 patients with histologically proved lung cancer in a fixed population were reviewed to assess the efficacy of biennial chest radiography in detecting lung cancer. Radiographic abnormalities caused by tumors were initially ...

All screening radiographs of the chest and other medical records of 107 patients with histologically proved lung cancer in a fixed population were reviewed to assess the efficacy of biennial chest radiography in detecting lung cancer. Radiographic abnormalities caused by tumors were initially ...

The report reflects the results of a study that was conducted to identify the indications recorded by physicians ordering skull, chest, and upper gastrointestinal tract (UGI) x-ray examinations. These indications were then statistically analyzed to determine criteria associated with a high yield of abnormal radiographic findings.

Giant left atrium syndrome can occasionally occur in patients with rheumatic mitral valve regurgitation and can be responsible for oesophagus and/or airways compression. Abnormally enlarged left atriomegaly creates unusual right chest opacification on radiographs. PMID:21881448

Eighty-six [67Ga]citrate chest scans were performed in 71 adult patients with the acquired immunodeficiency syndrome. Forty-five of these patients also had Kaposi's sarcoma. Only 29 of 57 abnormal scans were correlated with abnormal chest radiographs. Chest ...

Eighty-six (/sup 67/Ga)citrate chest scans were performed in 71 adult patients with the acquired immunodeficiency syndrome. Forty-five of these patients also had Kaposi's sarcoma. Only 29 of 57 abnormal scans were correlated with abnormal chest radiographs. Chest ...

... to be drained is identified using a chest radiograph (X-ray). Sometimes other tests, such as a ...

A radiologist in New York reported a high prevalence of pulmonary fibrosis in St. Lawrence and Jefferson counties. The New York State Department of Health responded by conducting a case history study of radiographic abnormalities found in the lung parenchyma and pleura of residents in Lawrence and Jefferson counties, where tremolitic talc has been mined ...

Computed tomography (CT; both conventional (CCT) and high resolution (HRCT)) scans of the thorax were evaluated to detect early asbestosis in 61 subjects exposed to asbestos dust in Qu�bec for an average of 22(3) years and in five controls. The study was limited to consecutive cases with chest radiographs of the International Labour Organisation ...

Radiographic features of 71 patients (48 men, 23 women) with nosocomial Legionella pneumophila pneumonia were assessed and compared with those of other nosocomial series of L pneumophila pneumonia. Sixteen patients were assessed retrospectively and 55 prospectively. Chest radiographs were assessed at the onset of the illness, 10 days ...

This book is an atlas about thoracic abnormalities in infants and children. The authors include computed tomographic, digital subtraction angiographic, ultrasonographic, and a few magnetic resonance (MR) images. They recognize and discuss how changes in the medical treatment of premature infants and the management of infection and pediatric tumors have altered some of the ...

To evaluate the cardiac hypertrophy from chest radiograph images, radiologists usually examine the cardiothoracic ratio (frequently called CTR) which is a standard diagnostic index. The CTR is computed by the maximum transverse diameter of the heart shadow divided by the maximum transverse diameter of right and left lung boundaries. In this paper, we ...

Users of CT pulmonary angiography recognized that ancillary findings on CT pulmonary angiograms of patients in whom PE was excluded often provided useful information.(1-5) Some ancillary findings on the CT angiogram, such as peripheral wedge-shaped densities, may suggest the need for further studies of PE because they suggest ...

Since the early 1900s, it was recognized that many dust-exposed workers developed abnormal radiographs during life. Chest radiography remains the primary means of determining the presence and extent of dust-induced pneumoconiosis, although it is ineffective for detecting airways obstructions from mine dust exposure. This chapter ...

BACKGROUND--Several chest radiographic abnormalities have been described in pulmonary sarcoidosis, but a diffuse ground glass pattern is extremely rare. METHODS--The chest radiographs of more than 1600 patients with sarcoidosis evaluated in our service between 1976 and 1991 were reviewed to ...

The purpose of this study is to explore whether reader characteristics are linked to heightened levels of diagnostic performance in chest radiology using receiver operating characteristic (ROC) and jackknife free response ROC (JAFROC) methodologies. A set of 40 postero-anterior chest radiographs was developed, of which 20 were ...

Systemic sclerosis is frequently complicated by fibrosing alveolitis although clinical and radiological abnormalities are not usually apparent until the lung disease is well established. The aim of this study was to investigate pulmonary involvement in systemic sclerosis by thin section CT scan, bronchoalveolar lavage (BAL) and 99mTc-DTPA clearance studies, and assess the ...

Background. Contrary to what may be expected, finding abnormalities in complex images like pulmonary nodules in chest radiographs is not dominated by time-consuming search strategies but by an almost immediate global interpretation. This was already known in the nineteen-seventies from experiments with briefly flashed ...

Patients with ankylosing spondylitis (AS) sometimes develop apical lung fibrosis and cavitation. It has been suggested that one causative factor is reduced apical ventilation due to rigidity of the thoracic cage. We measured regional ventilation in 27 patients with AS and 18 normal volunteers. Twelve patients (Group A) had chest expansion greater than 2 cm, twelve (Group B) ...

The report demonstrates the feasibility of using a computer for automated interpretation of chest radiographs for pneumoconiosis. The primary goal of this project was to continue testing and evaluating the prototype system with a larger set of films. Afte...

Conventional chest tomography and fibreoptic bronchoscopy were performed in 100 patients with a localised chest abnormality on their chest radiographs who had been referred with a possible diagnosis of bronchial carcinoma. Carcinoma was eventually confirmed in 74 cases and in 26 the lesion ...

A 78-year-old man was referred to our department because of an abnormal shadow on the chest radiograph and liver dysfunction after lung resection for lung cancer. Following the operation, loxoprofen sodium was administered to control his chest pain. A chest radiograph on ...

The aim of this study was to determine the radiologic findings associated with admission to the intensive care unit (ICU) and the development of acute respiratory distress syndrome (ARDS) in patients with pH1N1 infection. One hundred and four patients (15-96�years) with laboratory-confirmed pH1N1 infection seen at the Emergency Department from July to December 2009 who underwent ...

A scheme for triaging pulmonary abnormalities in pediatric chest radiographs for specialist interpretation would be useful in resource-poor settings, especially those with a high tuberculosis burden. We assess computer-aided detection of pulmonary pathology in pediatric digital chest X-ray images. The method ...

Ventilation-perfusion (V-P) lung scans obtained in 114 patients in a screening program for the early detection of lung cancer were reviewed, and abnormalities were correlated with radiographic and surgical findings. Eighty-seven patients eventually had a tissue diagnosis of carcinoma; 65 (75%) had a perfusion defect and 56 (67%) had a ventilation ...

A cross-sectional prevalence study of 120 public school custodians was carried out to investigate the prevalence of asbestos-related disease and to determine the proportion with disease attributable to asbestos exposures in school buildings. Medical and occupational histories, flow-volume loops, and posterior-anterior, lateral, and anterior oblique (AO) chest ...

A patient with a superior mediastinal mass on an admission chest radiograph was initially evaluated by an /sup 131/I thyroid scan which failed to demonstrate a substernal thyroid. However, the tomographic /sup 67/Ga scan clearly showed an abnormal uptake in the area corresponding to the mass lesion on radiographic ...

With the general improvement in environmental controls in workplaces where asbestos is used, an increasing number of workers are seen who exhibit isolated pleural plaques. The question as to whether these are associated with respiratory impairment independently of parenchymal disease remains unresolved. The question was reinvestigated using quantitative gallium-67 lung scanning to take into ...

A suprahepatic, anteriorly displaced gallbladder in association with an inverted liver is an extremely rare congenital anomaly. We report the clinical and radiologic findings associated with a 78-year-old woman presenting with shortness of breath, desaturation, hypercapnia and hypoxemia. An abnormal chest radiograph demonstrated right ...

The chest radiograph is the basic tool for identifying occupational and environmental lung diseases; however, its sensitivity and specificity for the diagnosis of occupational and environmental lung diseases are low. High-resolution CT is the optimal method of recognizing parenchymal abnormalities in occupational and environmental ...

Fourteen gallium scans were obtained in 11 patients suspected of having amiodarone lung toxicity on the basis of clinical findings, pulmonary function tests, and chest radiographs. All 11 patients had abnormal scans. Gallium accumulates in various inflammatory and neoplastic lesions, but despite this nonspecificity, the findings ...

Nocardiosis is often misdiagnosed as tuberculosis in patients with HIV, as both diseases have similar manifestations. We describe the successful management of a case of advanced AIDS with disseminated Nocardial infection due to N. asteroides. Nocardial infection needs to be suspected in a patient with HIV infection when there is chest radiographic ...

Fibrosing alveolitis and bronchiolitis obliterans are two of the many pulmonary manifestations of the connective tissue disorders. When shortness of breath is the main complaint, it is often difficult to diagnose the individual causative lesion from the clinical examination, lung function tests, and chest radiographic findings. In such cases high ...

A patient with medulloblastoma of the cerebellum developed dyspnea and hypoxemia. Pulmonary function tests showed decreased lung volume and diffusing capacity, while the chest radiographs initially showed only mild interstitial infiltrates. Repeated gallium scans showed diffuse lung uptake and diagnosis of pulmonary alveolar proteinosis was made by open ...

A 28 year old white woman with no medical history presented to the emergency room with symptomatic non-sustained ventricular tachycardia. She was asymptomatic up to a few days before presentation. Her physical examination was essentially normal and hence did not help with the differential diagnosis of the problem. Bronchoscopic transbronchial biopsy led to the final diagnosis of cardiac ...

...Characteristic chest radiographic (or computed tomography (CT)) abnormalities. (B) Restrictive or obstructive lung physiology testing or diffusing lung capacity defect. (C) Lung pathology consistent with chronic beryllium disease. (D)...

A retrospective morphologic study of 80 cases was undertaken to determine factors affecting detectability of computed tomographically (CT) proved aortopulmonary (AP) window lesions on conventional posteranterior (PA) and lateral chest radiographs. Criteria used for determining abnormality were: (a) solitary lymph node enlargement over ...

Purpose:To assess the frequency and spectrum of abnormalities on routine screening chest radiographs in the pre-employment evaluation of health care workers with positive tuberculin skin test (TST) results.Materials and Methods:The institutional review board approved this HIPAA-compliant retrospective study and waived the need for ...

... doctor will probably need to take X-rays (radiographs) of your shoulder and chest to describe and ...

We investigated the diagnostic value of the chest radiograph and ECG in the evaluation of whether asymptomatic children with a cardiac murmur had a heart disease as defined by echocardiography. One hundred children aged 1 month to 15 years (median 30.1 months) were included. After physical examination, a tentative diagnosis was made: 53 children had no ...

Recent reports have shown the value of magnetic resonance imaging (MRI) in demonstrating normal and abnormal mediastinal and hilar anatomy. The potential role of MRI in evaluating patients who have undergone prior chest irradiation for pulmonary neoplasm has not been emphasized. The MRI appearance of mediastinal fibrosis after treatment of a patient with ...

Gallium-67 scintigraphy was performed in 38 patients with pulmonary sarcoidosis to assess its value as a supplement to the clinical, radiographical and functional investigations. In 32 (84%) of the 38 patients the scan was abnormal and showed 67Ga uptake in the pulmonary parenchyma and/or hilum. The incidence and severity of pulmonary symptoms correlated ...

Intravascular foreign body thromboembolism and interstitial or vascular granulomata in the lungs are common sequelae to intravenous drug abuse. Early detection of such complications is important, because of the youthful population often involved. Conventional pulmonary function tests, including forced expiratory volumes, diffusion capacity for CO (DLco), chest ...

Automatic detection of tuberculosis (TB) on chest radiographs is a difficult problem because of the diverse presentation of the disease. A combination of detection systems for abnormalities and normal anatomy is used to improve detection performance. A textural abnormality detection system operating at the pixel ...

A computer-aided detection (CAD) system is presented for the localization of interstitial lesions in chest radiographs. The system analyzes the complete lung fields using a two-class supervised pattern classification approach to distinguish between normal texture and texture affected by interstitial lung disease. Analysis is done pixel-wise and produces a ...

Routine radiographic chest examinations have been performed using a variety of techniques. Although chest radiography is one of the most commonly performed radiographic examinations, it is often difficult to obtain consistently good quality roentgenograms...

We have developed a new computer-aided diagnostic (CAD) scheme for detection of diffuse lung disease in computed radiographic (CR) chest images. One hundred ninety-four chest images (56 normals and 138 abnormals with diffuse lung diseases) were used. The 138 abnormal cases were classified into ...

An estimate has been made of the prevalence of unrecognised pneumoconiosis in former crocidolite workers from Wittenoom, Western Australia. All plain chest radiographs relating to a one in six random sample (1025 men) of all former Wittenoom workers who had never entered a compensation claim to the Pneumoconiosis Medical Board of Western Australia were ...

Objective To determine variability in interpretation of chest radiographs among tuberculosis specialists, radiologists, and respiratory specialists.Design Observational study.Setting Tuberculosis and respiratory disease services, Samara region, Russian Federation.Participants 101 clinicians involved in the diagnosis and management of pulmonary tuberculosis ...

A 76-year-old man was admitted because of dry cough and dyspnea two weeks after VATS lobectomy for lung cancer. Chest radiographs and computed tomography showed interstitial shadows in the only operative lung side. Although antibiotic drugs were given because we believed it to be postoperative pneumonia, abnormal shadows on ...

In a prospective study in AIDS patients with chronic diarrhea, the overall prevalence of intestinal cryptosporidiosis was 15.6% (43/275). The prevalence was higher in homosexual patients (33.3%) than in intravenous drug abusers (10.6%) (p < 0.001). Extraintestinal infection was present in 30% (13/43) of the patients with known intestinal cryptosporidiosis. Eight of the 13 (61.5%) patients with ...

Asbestos-induced pleural fibrosis is the most common radiographic abnormality among asbestos-exposed persons. Circumscribed pleural plaques and diffuse pleural thickening account for more than 90% of the asbestos-induced chest wall abnormalities, and their prevalence is expected to increase for the next 15 to 20 ...

Fifty-two patients with pulmonary complications of acquired immunodeficiency syndrome (AIDS) were studied over a 3-year period. The vast majority of the patients were homosexual; however, a significant number were intravenous drug abusers. Thirteen different organisms were noted, of which Pneumocystis carinii was by far the most common. Five patients had neoplasia. Most patients had initial ...

A 37-year-old woman was referred to our department because of an abnormal shadow on her chest radiograph as well as multiple subcutaneous nodules on both her lower legs. She had had a history of Cushing syndrome due to right adrenal adenoma, which was successfully treated by unilateral adrenalectomy two years before her admission to ...

A 46-year-old man with no past history of underlying disease was admitted to our hospital for examination of abnormal chest shadow on chest radiograph. He had no respiratory symptoms on admission. Chest radiograph showed a solitary nodule (35 � 20 mm) in the left upper ...

Intravariceal injection of a sodium morrhuate sclerosant solution, an effective therapy for bleeding esophageal varices, is complicated occasionally by fever and pneumonia. To determine if embolization of sclerosant to or through the pulmonary circulation occurs, chest scintigrams were performed following intravariceal injection of 1-3 mCi 99m-Tc-MAA mixed with 5-20cc of ...

Despite the increased use of CT imaging, chest radiography remains a very important diagnostic modality in the evaluation of lung parenchymal and mediastinal diseases, providing a vast amount of useful information. This information is generally derived from the relationships among the normal anatomic structures of the mediastinum, pleura, and lungs, which represent the basis ...

A cross-sectional prevalence study of 120 public school custodians was carried out to investigate the prevalence of asbestos-related disease and to determine the proportion with disease attributable to asbestos exposures in school buildings. Medical and occupational histories, flow-volume loops, and posterior-anterior, lateral, and anterior oblique (AO) chest ...

Eleven common radiographic signs of mediastinal hemorrhage were evaluated by two observers for the following three patient groups: normal subjects, patients with mediastinal hemorrhage and no arterial injury, and patients with major thoracic arterial injury. Supine chest radiographs were studied in all cases. Four major conclusions can ...

All gallium-67 citrate scans obtained in patients with acquired immunodeficiency syndrome (AIDS) at the Clinical Center, National Institutes of Health (Bethesda, Md.) were retrospectively analyzed and correlated with the results of bronchoscopy, chest radiography, and endoscopy. There were 164 scans of 95 patients. Twenty scans were from patients with Pneumocystis carinii ...

We describe a patient with recurrent small cell undifferentiated lung carcinoma after chemotherapy and mediastinal radiation therapy who presented with peripheral pulmonary infiltrates on chest radiograph. At autopsy the patient was found to have carcinomatous pneumonia confined to the radiographically abnormal ...

This review of chest radiology reexamines normal findings on plain chest radiographs, and presents a new plain film view for detecting metastases in the lungs, and describes new findings on acute and chronic inflammatory diseases. Various chest radiologic procedures are examined. (KRM)

In 1940, the first report appeared describing a pulmonary disorder associated with occupational exposures in the cemented tungsten carbide industry. The disease, known as "hard metal disease," has subsequently been characterised in detail and comprises a wide range of clinical signs and symptoms. In this report, clinical findings in a group of 41 hard metal workers employed until recently are ...

A cross sectional study was conducted on 513 employees at three hard metal plants: 425 exposed workers (351 men, 74 women) and 88 controls (69 men, 19 women). Cough and sputum were more frequent in workers engaged in "soft powder" and presintering workshops compared with controls (12.5% and 16.5% v 3.5%). Spirometric abnormalities were more frequent among women in sintering ...

Recently-developed dynamic flat-panel detector (FPD) with a large field of view is possible to obtain breathing chest radiographs, which provide respiratory kinetics information. This study was performed to investigate the ability of dynamic chest radiography using FPD to quantify relative ventilation according to respiratory ...

A series of 41 individuals were restudied after childhood cancer with a median follow-up time of 17 years after chest irradiation or treatment with cyclophosphamide or Adriamycin (doxorubicin). Radiotherapy of the chest had been used in 21 patients, and in 13 of these irradiation was also directed at the heart. Thirty-five patients received ...

All available workers engaged in bagging an artificial crystalline aluminium silicate--the kiln-dried residue from the calcining and water extraction of alunite (a hydrated sulphate of aluminium and potassium) that is currently classified as a nuisance dust--were studied after a complaint of respiratory and systemic symptoms, including arthritis, by an employee of the factory, who showed ...

All available workers engaged in bagging an artificial crystalline aluminium silicate--the kiln-dried residue from the calcining and water extraction of alunite (a hydrated sulphate of aluminium and potassium) that is currently classified as a nuisance dust--were studied after a complaint of respiratory and systemic symptoms, including arthritis, by an employee of the factory, who showed ...

BackgroundMore than half of all health care workers (HCWs) in high TB-incidence, low and middle income countries are latently infected with tuberculosis (TB). We determined radiological lesions in a cohort of HCWs with latent TB infection (LTBI) in India, and determined their association with demographic, occupational and T-cell immune response variables.MethodologyWe obtained ...

Normal posteroanterior (PA) view of the chest in a young maleAnnotated: falseDisease diagnosis: NormalRadiograph type: plain

Normal posteroanterior (PA) view of the chest in an older maleAnnotated: falseDisease diagnosis: NormalRadiograph type: plain

Normal posteroanterior (PA) view of the chest in a young femaleAnnotated: falseDisease diagnosis: NormalRadiograph type: plain

Normal lateral view of the chest in a young femaleAnnotated: falseDisease diagnosis: NormalRadiograph type: plain

Lloyd Davies, T. A., Doig, A. T., Fox, A. J., and Greenberg, M. (1973).British Journal of Industrial Medicine,30, 227-231. A radiographic survey of monumental masonry workers in Aberdeen. A survey of radiographic appearances of the lungs of monumental masonry workers in Aberdeen was carried out to determine the present prevalence of ...

Age related changes in rib cage geometry were found from measurements made on chest radiographs from 38 individuals aged from 1 month to 31 years and on computed tomography (CT) scans in another 28 individuals, aged from 3 months to 18 years. Chest radiographs were taken for minor respiratory symptoms or fever and ...

An active duty male presented to the emergency room with dyspnea for 2 days after undergoing liposuction surgery. Upon presentation, the patient was afebrile, tachycardic, tachypneic, and hypoxemic. The initial chest radiograph demonstrated bilateral patchy opacities and the PaO2/FiO2 ratio was <200. The patient was admitted to the medical intensive ...

Eight patients who became ill while taking tryptophan had myalgia, fatigue, rash, fever, edema, alopecia, arthralgias, diminished joint motion, skin tightening, muscle cramping, and distal paresthesias. Three had shortness of breath, and one had pulmonary hypertension. Laboratory abnormalities included peripheral eosinophilia, leukocytosis, thrombocytosis, raised erythrocyte ...

Pneumocystis carinii pneumonia was suggested by a diffuse, bilateral pulmonary uptake of gallium-67 in an asymptomatic, homosexual male with the antibody to the immunodeficiency virus (HIV) who was undergoing staging evaluation for lymphoma clinically localized to a left inguinal lymph node. Chest radiograph and pulmonary function evaluation, including ...

Our objective was to determine the yield and cost of standardized laboratory testing of HIV-infected patients entering medical care after testing positive for HIV. An HIV staging and referral clinic in a municipal public hospital was our site for a cross-sectional study, and 308 patients were evaluated in the clinic between February 1, 1990 and October 1, 1991. Patients underwent standardized ...

Non-invasive measurements of the phrenic nerve conduction time (CT) and diaphragmatic electromyographic response to voluntary inspiratory efforts may help to document an abnormal diaphragmatic function in the presence of hemidiaphragm elevation on chest radiographs. Twenty-one patients were addressed for the diagnosis of ...

A 68-year-old woman was admitted with atypical angina. A chest radiograph showed an anterior mediastinal mass that was confirmed on CT. The mass was relatively avascular and separate from the heart and great vessels. She underwent stress thallium testing that demonstrated no exercise-induced ischemia; however, an abnormal focus of ...

Lymphangitic carcinomatosis is usually a late manifestation of metastatic disease. The patient usually presents with cough or dyspnea, and the chest radiograph is often nondiagnostic. Two patients are presented who developed symptoms while on adjuvant chemotherapy. Both had abnormal perfusion lung scans. One had matching ventilation ...

Lymphangitic carcinomatosis is usually a late manifestation of metastatic disease. The patient usually presents with cough or dyspnea, and the chest radiograph is often nondiagnostic. Two patients are presented who developed symptoms while on adjuvant chemotherapy. Both had abnormal perfusion lung scans. One had matching ventilation ...

An outbreak of coccidioidomycosis among 22 Navy SEALs occurred during training exercises in Coalinga, California. Ten (45%) of the 22 men had serologic evidence of acute coccidioidomycosis, the highest attack rate ever reported for a military unit. All case patients were symptomatic, and 50% had abnormal chest radiographs. There were ...

A 69-year-old man with a history of exposure to asbestos was admitted because of a chest radiographic abnormality. Subsequent findings from computed tomography and a thoracoscopic biopsy suggested malignant mesothelioma. Punctate calcification was observed in the pleural tumor on computed tomography scanning. The patient underwent ...

The purpose of this study was to identify the utility of thoracic computed tomography (TCT) in blunt trauma patients with a normal admission chest radiograph (CXR). A retrospective study was performed of 200 consecutive blunt trauma patients who received both CXR and TCT. One hundred and forty-three patients had a normal screening CXR; 36 of these patients ...

Coalworkers' simple pneumoconiosis is diagnosed in life by the presence on a chest radiograph of small opaque shadows. In most cases, these are rounded in shape, with diameter up to about 10 mm. Certain other mineral pneumoconioses are typified by opaciti...

An 82-year-old male farmer who came to our clinic in November 2004 had an abnormal mass shadow of soft tissue density in the left lower lobe on his chest radiography. He had once received sudden blunt chest trauma to his left anterior chest wall by heavy farm equipment and this had produced a relative large ...

Temporal subtraction and dual-energy imaging are two enhanced radiography techniques that are receiving increased attention in chest radiography. Temporal subtraction is an image processing technique that facilitates the visualization of pathologic change across serial chest radiographic images acquired from the same patient; ...

Although the leading causes of fever and pulmonary infiltrates in sickle cell patients are acute bacterial pneumonia and the acute chest syndrome, the former is usually responsive to antibiotics and not protracted, and the clinical course of the latter is short and self-limited. A patient with sickle cell anemia presented with fever and pulmonary infiltrates of several weeks ...

Pulmonary Kaposi sarcoma associated with acquired immunodeficiency syndrome (AIDS) is difficult to diagnose because the clinical presentations and radiographic findings are nonspecific. The authors report three proved cases of AIDS-associated pulmonary Kaposi sarcoma diagnosed with sequential thallium and gallium scans. These scans demonstrated abnormal ...

Propylthiouracil (PTU) is a drug used to treat hyperthyroidism. A number of adverse effects have been reported with this drug, including fever, agranulocytosis, skin rash, and vasculitis. PTU-induced interstitial pneumonia is rare--only three cases have been reported--and PTU-induced nonspecific interstitial pneumonia (NSIP) has not been reported. We report a patient who developed NSIP after ...

We present a case of a 56-year-old white male with a medical history of hypertension,who initially presented with chest pain, diaphoresis, and electrocardiogram (ECG) changes suggesting myocardial infarction. Initial frontal radiograph showed marked displacement of the cardiac silhouette into the left hemithorax. Cardiac catheterization was performed per ...

A method and system for the computerized registration of radionuclide images with radiographic images, including generating image data from radiographic and radionuclide images of the thorax. Techniques include contouring the lung regions in each type of chest image, scaling and registration of the contours based on location of lung ...

A 36-year-old man who often ate raw chicken meat had abnormal chest radiograph findings on a health check-up in July 2009, and visited our department. A chest computed tomographic scan revealed 6 nodular shadows in both lungs, and a hematologic examination revealed eosinophilia and elevation of IgE. Because of his ...

We report the case of a 29-year-old man with hemoptysis. The patient came to the emergency department, where a laboratory test and chest radiograph were reported as normal. The following day the patient again had hemoptysis, though less than previously. He reported no chest pain, dyspnea, fever, catarrh, changes in urine or feces, ...

We report on two patients with Proteus syndrome (PS), with emphasis on its pulmonary manifestations. The first patient was a 6-year-old girl diagnosed with PS at 5 years of age. The pulmonary abnormalities first observed at age 3 years and included streaky densities with accentuated vascular markings detected by chest radiography. The patient had ...

BackgroundAlthough World Health Organization guidelines recommend clinical judgment and chest radiography for diagnosing tuberculosis in HIV-infected adults with unexplained cough and negative sputum smears for acid-fast bacilli, the diagnostic performance of this approach is unknown. Therefore, we sought to assess the accuracy of symptoms, physical signs, and ...

Dr. Ansell has produced a scholarly review of the radiology of drug reactions and toxic hazards in his latest book, which is based on over 1,200 articles in the world literature. About 800 of these articles are taken from outside the radiology literature, which indicates the need for this subject to be brought to the attention of the radiologist, particularly as concern about drug reactions and ...

Eleven HIV-infected and 30 otherwise healthy children hospitalized for H1N1 influenza were studied. Leukopenia was recorded in 64% of HIV-infected and in 20% of healthy children (P = 0.01). Chest radiograph was abnormal in 18 (46%) children. Interstitial pneumonia was more frequent in HIV-positive children and consolidation was more ...

... the spine (kyphoscoliosis), unusual prominence of the breastbone (pigeon chest, or pectus carinatum), dental abnormalities, and short, ...

... neck surgery, or an abnormality in the chest, neck or brain. In children, Horner�s syndrome may be caused by ...

OBJECTIVE: The purpose of this study was to evaluate whether using a chest radiograph to triage patients being imaged for pulmonary embolism (PE) with pulmonary CT angiography (CTA) or ventilation-perfusion scintigraphy resulted in fewer indeterminate imaging results. CONCLUSION: Chest radiograph can be a valuable ...

This book includes a chapter on chest radiographs. A very high proportion of the patients treated by physiotherapy will have had a chest radiograph (x-ray) either because their primary disease is pulmonary or there is some long standing heart or lung illness which should be taken into account during the management ...

This report documents the clinical testing of scanning beam digital radiography as an imaging method in patients with scoliosis. This type of digital imaging requires a skin exposure of only 2.4 mR (0.619 microC/kg) per image, compared with the lowest possible posteroanterior screen-film exposure of 10 mR (2.58 microC/kg) at the chest and 60 mR (15.48 microC/kg) at the lumbar ...

Small pneumothoraces are often not visible on supine screening chest radiographs because they develop anteriorly to the lung. These pneumothoraces are termed occult. Occult pneumothoraces account for an astonishingly high 52% to 63% of all traumatic pneumothoraces. A 19-year-old obese woman was involved in a head-on car accident. The admission ...

We conducted a 15-year retrospective cohort study to determine the prevalence of restrictive lung disease prior to allogeneic hematopoietic cell transplant (HCT), and to assess whether this was a risk factor for poor outcomes. 2545 patients were eligible for the analysis. Restrictive lung disease was defined as a total lung capacity (TLC) <80% of predicted normal. Chest ...

Post-tracheostomy lesions are becoming more commonplace and surgical techniques for definitive repair of these abnormalities are being developed. These lesions, in general, occur at two sites, the proximal lesions at the tracheostomy incision and the distal lesions 1�5 to 2�5 cm inferior in the area of the tracheostomy balloon cuff. Granuloma formation, stenosis, ...

A case of idiopathic pulmonary fibrosis with multiple areas of mismatch on ventilation-perfusion lung imaging in the absence of pulmonary embolism is presented. Idiopathic pulmonary fibrosis is one of the few nonembolic diseases producing a pulmonary ventilation-perfusion mismatch. In this condition, chest radiographs may not detect the full extent of ...

We report on an infant with neonatal Marfan syndrome (NMS) and hiatus/paraesophageal hernia who presented to a university hospital with an unusual early complication of this connective tissue disorder. An abnormal course of the nasogastric tube was noted on the first day of life by a radiograph of the chest and abdomen performed for ...

The occurrence and determinants of thickened interlobar fissures were assessed in 147 insulators, in order to test the hypothesis that radiographic abnormalities in minor (FMN) and/or major (FMJ) interlobar fissures are associated with restrictive respiratory impairment, which may reflect early parenchymal lung fibrosis. According to the diagnostic ...

Computed tomography (CT) should be the imaging method of choice following plain chest radiographs when a suspected thymic abnormality requires further evaluation. Based upon a six-year experience, including the evaluation of 25 patients with thymic pathology, CT was found useful in suggesting or excluding a diagnosis of thymoma and in ...

New labelling processes installed without adequate ventilation control in an electric motor factory exposed production line workers to toxic gases. Symptoms of eye and respiratory tract irritation together with complaints of headache, fever, chills, dizziness, malaise, general weakness, nausea, and vomiting were widespread. Chest signs, radiographic ...

The purpose of this study is to assess the impact on clinical decision making of chest computed tomography (CT) in immunocompetent emergency department (ED) patients with chest radiographic (CXR) findings of pneumonia. We retrospectively identified 1,373 patients from our ED who underwent chest CT between 7/05 and ...

Diatomaceous earth is a noncrystalline form of silica; in processing, calcining leads to formation of cristobalite, a form of crystalline silica. Four hundred ninety-two currently employed diatomaceous earth workers in a large mine and processing facility had chest radiographs performed and interpreted by the International Labour Office (ILO) system. Two ...

The cardio-thoracic ratio (CTR) is commonly measured manually for the evaluation of cardiomegaly. To determine the CTR automatically, we have developed a computerized scheme based on gray-level histogram analysis and an edge detection technique with feature analysis. The database used in this study consisted of 392 chest radiographs, which included 304 ...

This study reports an incidental finding from a larger work. It examines the relationship between spatial resolution and nodule detection for chest radiographs. Twelve examining radiologists with the American Board of Radiology read thirty chest radiographs in two conditions - full (1500 � 1500 pixel) resolution, ...

When lung nodules overlap with ribs or clavicles in chest radiographs, it can be difficult for radiologists as well as computer-aided diagnostic (CAD) schemes to detect these nodules. In this paper, we developed an image-processing technique for suppressing the contrast of ribs and clavicles in chest radiographs by ...

Double reading of chest x-rays is often used to ensure that fewer abnormalities are missed, but very little is known about how the search behavior of others affects observer performance. A series of experiments investigated whether radiographers benefit from knowing where another person looked for pulmonary nodules, and whether the ...

Shows abnormal radiolucencies in a series of panographic radiographs, discussing etiology and treatment.

A 35-year-old man was admitted to our hospital because of abnormal shadows on the chest radiograph and dry cough and exertional dyspnea. He was given a diagnosis of hard metal lung disease 15 years previously and was treated with corticosteroid. Laboratory examination revealed hypoxemia and reduced pulmonary vital capacity. ...

We have studied respiratory symptoms, smoking habits, chest radiographs, sickness absence, and pulmonary function among 258 welders and an equal number of matched control subjects in three engineering factories. Welders who smoked had a higher frequency of chronic phlegm production than control subjects but there was no difference in cough or dyspnoea. The ...

There is evidence that in infants with unilateral lung disease, oxygenation improves when the good lung is uppermost--the reverse of the situation in adults. We performed krypton-81m ventilation scanning in 18 infants and very young children (11 days to 27 months old) with and without abnormal chest radiographs. Scanning was performed ...

In order to evaluate its usefulness in the assessment of radiation pneumonitis, gallium-67 citrate (67Ga) imaging was performed before and after radiation therapy (RT) on 103 patients with lung cancer. In 23 patients with radiation pneumonitis detected radiographically, abnormal 67Ga uptake in sites other than tumors was found in all post-RT 67Ga lung ...

Cryptogenic organizing pneumonia (formerly known as bronchiolitis obliterans organizing pneumonia) is a clinicopathological entity with characteristical radiographic findings such as bilateral, asymmetrical, sometimes migrating, patchy infiltrates in chest radiograph and ground-glass opacities in computed tomography. The disease has ...

The computer aided diagnosis (CAD) of abnormalities on chest radiographs is difficult due to the presence of overlapping normal anatomy. Suppression of the normal anatomy is expected to improve performance of a CAD system, but such a method has not yet been applied to the computer detection of interstitial ...

Routine radiographic chest examinations have been performed using a variety of techniques. Although chest radiography is one of the most commonly performed radiographic examinations, it is often difficult to obtain consistently good quality roentgenograms. This publication provides a simple guide and relatively ...

Two methods are commonly used to visualize digital radiologic imaging data: (1) hard-copy viewing, in which the digital data are used to modulate the intensity of a laser beam that exposes an analog film and (2) soft-copy viewing, in which the digital data are converted to an analog video signal and presented on a CRT monitor. The film method allows new digital imaging systems to be easily ...

Forty two of 125 former workers in a factory in Syracuse, New York, which manufactured hard metal parts from tungsten carbide and cobalt, were studied by chest radiographs, spirometry, and plethysmographically determined lung volumes. The plant was closed in 1982 and the studies were performed in 1983-5. Recorded measurements of carbide dust concentrations ...

A 62-year-old man who had worked as a welder for 35 years was admitted with abnormal chest radiograph shadows. Chest CT scan showed ground-glass opacities (GGO) and nodular shadows (progressive massive fibrosis: PMF) with spiculation in both lung fields. Transbronchial lung biopsy (TBLB) findings of a nodule (left ...

To evaluate the usefulness of Ga-67 citrate scintigraphy in the early detection of radiation pneumonitis, scintigrams from 103 patients who were treated with radiation therapy for lung cancer were retrospectively analyzed with regard to abnormal Ga-67 uptake after radiation therapy in sites other than the original or recurrent tumors. Sixteen (20%) of the 80 asymptomatic cases ...

PURPOSE: Chest radiography is standard for the diagnosis of a pneumothorax. However, also ultrasound of the chest has considerable value in the detection of a pneumothorax. A typical sonographic feature is the lack of the lung gliding sign. Aim of our trial was to evaluate the significance of ultrasound of the chest in the diagnosis of ...

Processing of coir, which is the fibre obtained from the husk of the coconut, is a dusty procedure; 779 workers in two coir processing factories in Sri Lanka were examined clincally and radiographically for evidence of respiratory disease. Respiratory symptoms were present in 20 (2-6%) of them, which is no higher than in the general population. Respiratory disease such as ...

Two chest radiographs of each of 687 coal-face workers, obtained during two surveys two and a half years apart at eight pits in South Wales, have been assessed according to their technical quality as �acceptable�, �black�, �grey�, or �white�. The effect of variations in quality on the reading of the category of simple pneumoconiosis ...

The incidence and clinical predictors of amiodarone pulmonary toxicity were examined in 573 patients treated with amiodarone for recurrent ventricular (456 patients) or supraventricular (117 patients) tachyarrhythmias. Amiodarone pulmonary toxicity was diagnosed in 33 of the 573 patients (5.8%), based on symptoms and new chest radiographic ...

The uniformity of regional ventilation during tidal breathing has been assessed using continuous inhalation of krypton-81m in 43 male, lifelong nonsmokers and 46 male, current cigarette smokers (mean daily consumption 24.1 cigarettes/day) between 44 and 61 yr of age and with mild or no respiratory symptoms. All subjects had normal chest radiographs. The ...

The development of pulmonary hypertension is one of the adverse factors in the outcome of infants with chronic neonatal lung disese (CNLD). The purpose of this cross sectional study was to evaluate the prevalence and degree of pulmonary hypertension in a cohort of survivors of CNLD stable in air. Pulmonary artery pressure was assessed using its inverse correlation with the ratio of time to peak ...

OBJECTIVE:: To determine the rate of chest radiographic abnormalities among residents of North Dakota potentially exposed to road gravel containing the fibrous mineral erionite. METHODS:: Participants (n = 34) completed a questionnaire, chest radiograph, and high resolution computed tomography ...

Six hundred sixty custodians employed by the New York City Board of Education underwent examination from 1985 through 1987 for asbestos-related disease and other general medical conditions by the clinical staff of the Division of Environmental and Occupational Medicine of the Mount Sinai School of Medicine of the City University of New York. Two-thirds of the men (no women were examined) were 20 ...

The significance of pulmonary, hilar, and mediastinal uptake of Tc-99m SESTAMIBI in patients undergoing myocardial perfusion imaging was retrospectively investigated. SPECT myocardial perfusion images for 34 adult patients (ages: 52-to-82 years) with known lung cancer undergoing preoperative assessment of cardiac status and 29 {open_quotes}control{close_quotes} patients with normal ...

The respiratory health of workers exposed to polyvinylchloride (PVC) dust has been investigated in 818 men sampled from the work force of a factory manufacturing PVC. In a cross-sectional survey, the lung function and prevalences of respiratory symptoms and chest radiographic abnormalities were compared with estimates of individual PVC ...

Rationale: Gold miners in South Africa undergo annual radiological screening for tuberculosis in an occupational health center of a gold mining company, but the optimal screening algorithm is unclear.Objectives: To evaluate methods for active case detection of tuberculosis.Methods: A sequential sample of miners attending annual medical examination was screened for tuberculosis using a symptom ...

Pulmonary ventilation and blood flow are reflected in dynamic chest radiographs as changes in X-ray translucency, i.e., pixel values. This study was performed to investigate the feasibility of ventilation-perfusion (V/Q) study based on the changes in pixel value. Sequential chest radiographs of a patient with ...

BACKGROUND: Abnormalities of pulmonary function have been found in children with systemic lupus erythematosus (SLE) even in the absence of clinical or radiographic evidence of pulmonary involvement. It is unknown whether these abnormalities represent an early sign of progressive lung disease or whether they are associated with disease ...

ABSTRACT The relationship of features of beryllium disease to the estimated exposure to beryllium has been investigated over a 30-year period at a factory manufacturing beryllium products. The factory opened in 1952. Of the 146 men who had worked there for more than six months up to 1963, 89% were seen at that time and were followed up in 1973. The nine who continued to work in the factory and ...

To assess the value of routine chest radiography during acute first attacks of asthma, we studied 371 consecutive children over one year of age who presented with an initial episode of wheezing. Three hundred fifty children (94.3%) had radiographic findings that were compatible with uncomplicated asthma and were considered negative. Twenty-one (5.7%) had ...

on the left. After conferring with senior colleagues, I inserted a chest drain on the left, and verified its with bilateral chest drains and surgical emphysema from head to scrotum. However, at least he was alive. Chest chronic obstructive pulmonary disease, although his chest radiograph showed ...

Normal lateral view of the chest in a middle-aged maleAnnotated: falseDisease diagnosis: NormalRadiograph type: plain

Normal posteroanterior (PA) view of the chest in a middle-aged maleAnnotated: falseDisease diagnosis: NormalRadiograph type: plain

Normal posteroanterior (PA) view of the chest in a middle-aged maleAnnotated: falseDisease diagnosis: NormalRadiograph type: plain

to our emergency department with worsening dyspnea on exertion. Chest radiographs and chest CT revealed tight left upper lobe collapse from an obstructing left hilar mass. In this full-text version, we present a more detailed discussion of this case and t...

This paper reviews the work of several investigators who have concerned themselves with various aspects of computer measurement and diagnosis of anatomy present in chest radiography. It is hoped that, at the very least, it will provide a reasonably complete annotated bibliography of this body of research.

This paper reviews the work of several investigators who have concerned themselves with various aspects of computer measurement and diagnosis of anatomy present in chest radiography. It is hoped that, at the very least, it will provide a reasonably comple...

We present the case of a chondroblastoma with secondary aneurysmal bone cyst arising in a posterior rib. The tumor was initially detected on a chest radiograph obtained for evaluation of chest wall pain. This case illustrates the importance of a systemati...

... 8-26% of the time and possibly with the development of chest ... years and are associated with corresponding wall motion abnormalities and possibly ...

... with Marfan syndrome may exhibit long limbs and spider-like fingers, chest abnormalities, curvature of the spine ...

... Descriptors : *RADIOGRAPHY, *BRONCHITIS, *FIBROSIS, *THORAX, *X RAYS, ANALOG SYSTEMS, ABNORMALITIES, EDUCATION ...

A 69-year-old woman received radiation therapy of 50 Gy following surgery for left breast cancer. Eleven months later, chest computed tomography revealed infiltrative shadows with air bronchograms in both lower lung fields and a reversed halo sign in the right lower lobe. Transbronchial lung biopsy revealed polypoid granulation tissue in the terminal air spaces, which was ...

Intravenous injection of charcoal lighter fluid (naphtha) in a suicidal attempt led to development of severe hemorrhagic pneumonitis in a 40-year-old individual. Presenting symptoms consisted of pleuritic chest pain, epigastric discomfort, and dyspnea; they appeared within 2 hours after injection. Development of roentgenographic changes lagged behind the clinical symptoms by ...

Evaluation of 100 consecutive Tc-99m MDP bone scans revealed in 36 patients a well defined area of increased accumulation of radiotracer at the Angle of Louis--the palpable ridge along the anterior surface of the sternum at the fibrocartilaginous junction of the sternum and manubrium. Twenty-five of the 36 patients had comparison radiographs; all were normal. None had sternal ...

A case of miliary tuberculosis mimicking metastatic disease on bone scan is presented. The patient, a 35-year-old man, was hospitalized with fever, chills, hemoptysis, and a 23 kg weight loss over the previous 7 months. Chest radiographs revealed an apical infiltrate. Technetium-99m methylene diphosphonate bone scan revealed increased uptake not only in ...

This review evaluates noninvasive techniques for assessing cardiovascular performance in acute and chronic respiratory failure. Radiographic, radionuclide, and echocardiographic methods for determining ventricular volumes, right (RV) and left ventricular (LV) ejection fractions, and pulmonary artery pressure (PAP) are emphasized. These methods include plain ...

Interstitial lung disease involves all areas of medicine as it often occurs in patients with comorbidities or as a consequence of systemic diseases and their treatment. Typically the physician is faced with a breathless patient, a diffusely abnormal chest radiograph, and a wide differential diagnosis. Progress has been made in using ...

A design-based approach to ethical analysis examines how computer scientists, physicians and patients make and justify choices in designing, using and reacting to computer-aided diagnosis (CADx) systems. The basic hypothesis of this research is that values are embedded in CADx systems during all phases of their development, not just retrospectively imposed on them. This paper concentrates on the ...

We report a case of a primary collision lung cancer consisting of squamous cell carcinoma and adenocarcinoma. A 73-year-old man with an abnormality found on chest radiograph in the right lower lobe was examined by FDG PET/CT (F-18 fluorodeoxyglucose positron emission tomography/computed tomography). The tumor was composed of 2 ...

The long-term inhalation of cigarette smoke is associated with the appearance of diffuse small irregular opacities of mild profusion on chest roentogenograms of some subjects in a limited number of reports. Human histologic and experimental animal studies have shown the presence of pulmonary interstitial fibrosis. The radiographic ...

In the Eastern Highlands of Papua New Guinea 46 men and 24 women with chronic lung disease underwent clinical and lung function investigations. In all cases the sole or predominant abnormality was irreversible airways obstruction, probably from chronic bronchitis with variable amounts of acompanying emphysema. There were close similarities to chronic obstructife lung disease ...

A diagnostic approach to cardiac malposition and the heterotaxy syndrome is outlined. The /sup 99m/Tc sulfur colloid intravenous forward angiocardiogram and plain chest radiograph are used to determine the two key diagnostic points: position of the venous astrium and stomach. If located on the opposite sides of the body, four basic situs configurations are ...

.55 (1.73�3.76) Abnormal chest radiograph 2 4.81 (2.43�9.55) 0.0 � CHF 3 2.93 (1.02�8.43) 92.1 2.93 (1.11�1.32) 0.0 � * ASA American Society of Anesthesiologists; CHF congestive heart failure; COPD chronic units, emergency surgery, steroid use for chronic condi- tion, current smoker within 1 year, and alcohol

An outbreak of adenovirus type 3 infection occurred in a hospital in 19 North American Indian infants and young children who were being treated for unrelated problems. Pneumonia occurred in 14 and was usually severe, with persistent signs of airway obstruction. Eleven of the 14 were followed periodically and complete medical reviews were conducted 8 to 10 years later. Ten had ...

We present a 20-year-old Malay male whom we believe has Proteus syndrome, a rare congenital disorder of asymmetrical overgrowth of body tissues. There are fewer than 100 confirmed cases reported worldwide thus the clinical presentation and histopathological findings are of significance. Our patient presented with an overgrown right small finger and subcutaneous purplish pigmentation over his left ...

Bleomycin (BLM) is a chemotherapeutic agent used for the treatment of several types of malignancy, including germ cell tumors, lymphoma, and certain types of squamous-cell carcinoma. The common adverse effect of BLM is interstitial pneumonitis, followed by pulmonary fibrosis. BLM-induced pneumonitis occurs in up to 46% of patients treated with BLM-containing chemotherapy and lung toxicity usually ...

A previously healthy middle-aged person presents with excruciating left-sided chest pain of 6 hours' duration. The pain has come on abruptly, without warning, and is located in the lower part of the chest anteriorly. It radiates to the neck and left shoulder and worsens on deep inspiration. The patient appears seriously ill, with tachypnea, tachycardia, ...

U.S. Navy Asbestos Medical Surveillance Program B-reading reports were analyzed for variability in identifying pneumoconiosis in 278,944 chest radiographs done from 1990 to 2004 using commercial database and statistical software. Reported presence of pneumoconiosis by 33 B-readers ranged from 1.85 to 32.28%. The reported presence of parenchymal ...

Marine engineers undergoing routine annual chest roentgenography showed an unusual prevalence of pleural abnormalities including plaques suggestive of past asbestos exposure. A pilot survey, and a subsequent comprehensive study of the films of more than 5000 men, showed an overall prevalence of 12% with pleural abnormality (typical ...

The ability of an observer to detect variations in size of a geometrical image feature have been investigated using receiver operating characteristic (ROC) analysis. Three types of image were constructed using computer graphics: disc-shaped targets of variable radius, model chest radiographs showing a variable heart diameter and model arterial angiograms ...

There has been limited information concerning the prevalence of radiologically evident parenchymal and pleural fibrosis consistent with prior exposure to asbestos among merchant marine seamen, despite the wide use of asbestos in ship construction until the late 1970s and subsequent exposure of seamen to the asbestos that had been installed. A total of 3324 chest ...

Five experts, each with at least ten years of on-the-job experience since their residencies, and eighteen radiology residents in the first through fourth years of training diagnosed five standard chest X-ray pictures. Verbal protocols were collected, and an in-depth qualitative analysis of the protocols was performed. One of the most striking differences between the experts ...

OBJECTIVES: Little information is available on the quantitative risks of respiratory disease from quartz in airborne dust in the heavy clay industry. Available evidence suggested that these risks might be low, possibly because of the presence in the dust of other minerals, such as illite and kaolinite, which may reduce the harmful effects of quartz. The aims of the present cross sectional ...

We present chest radiographs, echocardiographic image, and selective coronary angiogram of an 18-year old patient with Hutchinson-Gilford progeria syndrome. PMID:20401475

... be applied in medical pattern recognition devices for such uses as detecting tumors in chest radiographs and counting blood cells in blood samples.

This study investigated the value of antemortem (AM) and postmortem (PM) radiographs of the claviculae and C3-T4 vertebrae to identify skeletons of missing U.S. soldiers from past military operations. In total, 12 field-recovered skeletons and AM chest radiographs of 1460 individuals were used. For each skeleton, examiners analyzed an ...

Under controlled conditions 16 people (eight non-medical) inexperienced in the radiology of occupational lung diseases repeatedly classified 300 selected chest radiographs using the 1971 ILO U/C International Classification of Radiographs of Pneumoconioses. Eight experienced medical readers had previously classified 220 of the selected ...

Chest radiographs were read from a sub-cohort of 386 factory workers with short term exposure to amosite asbestos (median exposure six months) and long follow up (median 25 years). Prevalence of abnormality was determined independently by two readers from the first film available after 20 years from first employment. Serial films were ...

This paper presents a mutual-entropy-based global registration method for temporal subtraction of chest radiographs. Our global registration method consists of two steps. In the first step, we make a rough registration by calculating the mutual entropy of on the whole areas of the previous radiograph and the current ...

The thickness of the shadows that accompany ribs or border the lungs on the chest postero-anterior radiographs of 22 obese patients and 22 normal-weight subjects was measured, when present, at several rib levels. A similar measurement was made of accompanying rib shadows on chest postero-anterior radiographs of ...