Interventional MRI
نویسندگان
چکیده
منابع مشابه
Multifunctional interventional devices for MRI: a combined electrophysiology/MRI catheter.
The design and application of a two-wire electrophysiology (EP) catheter that simultaneously records the intracardiac electrogram and receives the MR signal for active catheter tracking is described. The catheter acts as a long loop receiver, allowing for visualization of the entire catheter length while simultaneously behaving as a traditional two-wire EP catheter, allowing for intracardiac el...
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In this work, a high resolution whole mice body image using mechanically sliding coil array was demonstrated for interventional MR. Three fixed coil arrays were situated on the bottom of mice body while the mechanically mobile small coil loop with high S/N, was put on the top of mice head to perceive higher S/N on the volume of interest (VOI). One high SNR quality image of mice head captured by...
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MRI-guidance is increasingly used for minimally-invasive procedures, such as biopsy, and requires real-time active tracking of surgical instruments. Although optical and MR-based fiducial tracking devices have been used, these systems rely on complex contact with the operator or line-of-sight access for effective operation. A more straight-forward and clinically robust method is required to all...
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to be the obvious choice for magnetic resonance (MR) imaging. X-ray equipment, coupled with digital capabilities and contrast media injection, seems to provide excellent road maps for vascular interventions. This is demonstrated by innumerable percutaneous transluminal angioplasties (PTA) and coronary angioplasties (PTCA). At second glance, however, there are many attractive aspects of vascular...
متن کاملRadiofrequency Safety for Interventional MRI Procedures1
During an interventional magnetic resonance imaging (MRI) procedure, various kinds of surgical and interventional devices, such as needles, catheters, and guidewires, that contain metallic components are used inside the MRI scanner. Interference of these devices with radiofrequency pulses is known to be a possible health risk. The radiofrequency (RF) power delivered by an RF body coil may becom...
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ژورنال
عنوان ژورنال: Journal of Japan Society of Computer Aided Surgery
سال: 2004
ISSN: 1344-9486,1884-5770
DOI: 10.5759/jscas1999.6.75