发明名称 |
HIGH SPATIAL AND TEMPORAL RESOLUTION DYNAMIC CONTRAST-ENHANCED MAGNETIC RESONANCE IMAGING |
摘要 |
A method for high spatial and temporal resolution dynamic contrast enhanced magnetic resonance imaging using a random subsampled Cartesian k-space using a Poisson-disk random pattern acquisition strategy and a compressed sensing reconstruction algorithm incorporating magnitude image subtraction is presented. One reconstruction uses a split-Bregman minimization of the sum of the L1 norm of the pixel-wise magnitude difference between two successive temporal frames, a fidelity term and a total variation (TV) sparsity term. |
申请公布号 |
US2015346303(A1) |
申请公布日期 |
2015.12.03 |
申请号 |
US201514709089 |
申请日期 |
2015.05.11 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA |
发明人 |
Hu Peng;Rapacchi Stanislas |
分类号 |
G01R33/56;G01R33/48;G01R33/563 |
主分类号 |
G01R33/56 |
代理机构 |
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代理人 |
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主权项 |
1. A method of contrast enhanced magnetic resonance imaging, the method comprising:
(a) acquiring a plurality of magnetic resonance imaging data sets of a subject from a scanner by randomly under-sampling Cartesian k-space; and (b) reconstructing images from the acquired data sets with a split-Bregman minimization of the sum of the L1 norm of the pixel-wise magnitude difference between two successive temporal frames, a fidelity term and a total variation (TV) sparsity term. |
地址 |
Oakland CA US |