This paper reports our work on developing a robotic surgical system for transapical beating heart aortic valve replacement (AVR) under interactive real-time magnetic resonance imaging (rtMRI) guidance. Our system integrates a real-time MRI system, a compound MRI robot, as ...
PubMed Central
The human lung is exquisitely sensitive to gravity and posture. However, conventional high-field magnets used for hyperpolarized noble gas MRI of the human lung restrict subjects to lying horizontally. We have built an open-access, low-magnetic-field (<5 mT) MRI instrument which allows freedom of body positioning while providing ...
NASA Astrophysics Data System (ADS)
Magnetic resonance imaging (MRI) can provide high-quality 3-D visualization of prostate and surrounding tissue, thus granting potential to be a superior medical imaging modality for guiding and monitoring prostatic interventions. However, the benefits cannot be readily harnessed for interventional procedures due to difficulties that surround the use of high-field (1.5T or ...
This paper reports the use of a magnetic resonance imaging (MRI) system to propel a ferromagnetic core. The concept was studied for future development of microdevices designed to perform minimally invasive interventions in remote sites accessible through the human cardiovascular system. A mathematical model is ...
PubMed
For increasing safety in guidance techniques of endoscopes and instruments, fast radiologic imaging should be integrated. Magnetic resonance imaging (MRI), computer tomography (CT) and electron beam tomography (EBT) scanners permit transparency of the operative field; CT and EBT can be combined with fluoroscopy and ultrasound units. MRI avoids x ray ...
... 1) MRI Environment Testing - Preclinical The sponsor has conducted preclinical testing to support the safety of the REVO MRI pacing system when used according ...
Center for Biologics Evaluation and Research (CBER)
The computing architecture and software developed to acquire and evaluate images from Cuban Giroimag MRI machines are presented. Giroimags computing systems are based on networked PCs forming a client/server architecture. The main principle applied in the system development is to take advantage of network computing and the power of ...
... Accession Number : ADA501573. Title : Structural MRI and Cognitive Correlates in Pest-control Personnel from Gulf War I. ...
DTIC Science & Technology
... Accession Number : ADA525918. Title : Structural MRI and Cognitive Correlates in Pest-Control Personnel from Gulf War I. ...
... Accession Number : ADA501253. Title : MRI-DTI Tractography to Quantify Brain Connectivity in Traumatic Brain Injury. Descriptive Note : Final rept. ...
... Accession Number : ADD342489. Title : Environmental studies using high-field MRI,. Corporate Author : Personal Author ...
... Accession Number : ADA405387. Title : A Low-Cost, High Quality MRI Breast Scanner Using Prepolarization. Descriptive Note : Final rept. ...
... Accession Number : ADA390077. Title : A Low-Cost, High Quality MRI Breast Scanner Using Prepolarization. Descriptive Note : Annual rept. ...
Magnetic Resonance Imaging (MRI) has potential to be a superior medical imaging modality for guiding and monitoring prostatic interventions. The strong magnetic field prevents the use of conventional mechatronics and the confined physical space makes it extremely challenging to access the patient. We have designed a robotic assistant ...
