发明名称 |
BACKGROUND SUPPRESSION METHOD FOR TIME-RESOLVED MAGNETIC RESONANCE ANGIOGRAPHY |
摘要 |
<p>A 3D projection reconstruction pulse sequence is employed during a CEMRA dynamic study to acquire a time course series of k-space data sets. Signals from non-vascular voxels are suppressed by reconstructing a corresponding series of low resolution images using the centers of the acquired k-space data sets, and measuring the degree to which the signal behavior of voxels therein differ from a model of unwanted signal. Signals from voxels which do not differ from the model are suppressed and the resulting filtered low resolution images are transformed back to k-space and combined with the originally acquired peripheral k-space data to form complete, filtered k-space data sets from which images may be reconstructed.</p> |
申请公布号 |
WO2005001501(A1) |
申请公布日期 |
2005.01.06 |
申请号 |
WO2004US17929 |
申请日期 |
2004.06.07 |
申请人 |
WISCONSIN ALUMNI RESEARCH FOUNDATION;BLOCK, WALTER;ARUNACHALAM, ARJUN |
发明人 |
BLOCK, WALTER;ARUNACHALAM, ARJUN |
分类号 |
G01R33/28;G01R33/563;(IPC1-7):G01R33/563 |
主分类号 |
G01R33/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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