发明名称 |
CONTRAST AGENT ENHANCED MAGNETIC RESONANCE ANGIOGRAPHY WITH VESSEL SEGMENTATION |
摘要 |
A magnetic resonance angiogram (RMA) is acquired using a contrast enhancement method in which a series of low resolution NMR images are rapidly acquired during a time resolved phase of the examination in which the contrast bolus makes a first pass through the arteries and veins. Additional, high resolution NMR image data is acquired in a subsequent steady-state phase of the examination from which a high resolution NMR image is reconstructed. Segmentation of arteries, veins and background in the high resolution image is performed using information in the low resolution NMR images.
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申请公布号 |
WO0040990(A1) |
申请公布日期 |
2000.07.13 |
申请号 |
WO2000US00137 |
申请日期 |
2000.01.05 |
申请人 |
WISCONSIN ALUMNI RESEARCH FOUNDATION |
发明人 |
MISTRETTA, CHARLES, A.;GRIST, THOMAS, M.;CARROLL, TIMOTHY, J.;MAZAHERI, YOUSEF |
分类号 |
G01R33/48;A61B5/055;G01R33/32;G01R33/56;G01R33/563;(IPC1-7):G01R33/563 |
主分类号 |
G01R33/48 |
代理机构 |
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地址 |
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