MRI medical device markers utilizing fluorine-19

摘要

Medical devices that incorporate compounds containing fluorine-19 materials for use as contrast agents and passive markers in interventional magnetic resonance angiography. The device may be a guidewire, guiding catheter, angioplasty catheter, stent, embolic protection device, endovascular graft, endotracheal tube, Foley catheter, Hickman catheter, Broviac catheter, cerebrospinal fluid shunt, biliary stent, stylet, biopsy needle, electrode, percutaneous or endoluminal transducer or other desired interventional medical device. The fluorine-19 material may be configured from an elastomer, a fluid, a fluorosilicone, or a perfluorocarbon grease or oil. Such materials may be incorporated into marker bands and/or stripes, or may be deposited into or dispersed within the walls or lumens of the medical device to be visualized. Use of fluorine-19 containing markers and contrast agents provide a novel method of performing angioplasty and deploying stents, grafts, embolic protection and other such devices using interventional magnetic resonance angiography.