发明名称 |
PHASE CONTRAST MR FLOW IMAGING USING ANGULARLY INTERLEAVED PROJECTION DATA |
摘要 |
A magnetic resonance angiogram (MRA) is acquired using a pulse sequence that samples k-space at a projection angle. The acquired NMR signal is sensitized to spin motion with a bipolar motion encoding gradient and the pulse sequence is repeated to sample k-space at a set of different projection angles. A phase image is reconstructed from the acquired NMR signals using a filtered backprojection technique. Additional sets of projections with different motion encoding directions are acquired at interleaved projection angles, and the reconstructed phase images are combined to provide a velocity image.
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申请公布号 |
WO0040989(A1) |
申请公布日期 |
2000.07.13 |
申请号 |
WO2000US00136 |
申请日期 |
2000.01.05 |
申请人 |
WISCONSIN ALUMNI RESEARCH FOUNDATION |
发明人 |
MISTRETTA, CHARLES, A.;BARGER, ANDREW, V. |
分类号 |
G01R33/48;A61B5/055;G01R33/54;G01R33/563;(IPC1-7):G01R33/563 |
主分类号 |
G01R33/48 |
代理机构 |
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代理人 |
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地址 |
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