发明名称 |
K-SPACE SAMPLE DENSITY COMPENSATION FOR MAGNETIC RESONANCE IMAGE RECONSTRUCTION |
摘要 |
The present invention provides a method for producing density-compensated MR images having improved signal-to-noise ratio and with reduced computational burden. The method includes sampling MR data using a rotationally symmetric acquisition trajectory, generating a cross-correlation matrix, and applying a discreet Fourier transform (DFT) to the acquired MR data and the cross correlation matrix. The method further includes employing the transformed MR data and transformed cross-correlation matrix in a linear system to produce a set of density-compensated transformed MR data, which may transformed into density compensated MR data by application of an inverse DFT. The density compensated MR data may be reconstructed by a variety of techniques to produce density compensated images.
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申请公布号 |
US2010305424(A1) |
申请公布日期 |
2010.12.02 |
申请号 |
US20080743030 |
申请日期 |
2008.11.21 |
申请人 |
COOK JACK M;MITSOURAS DIMITRIOS;RYBICKI FRANK J;MULKERN ROBERT V |
发明人 |
COOK JACK M.;MITSOURAS DIMITRIOS;RYBICKI FRANK J.;MULKERN ROBERT V. |
分类号 |
A61B5/055;G06K9/00 |
主分类号 |
A61B5/055 |
代理机构 |
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