发明名称 PARALLEL MAGNETIC RESONANCE IMAGING TECHNIQUES USING RADIOFREQUENCY COIL ARRAYS
摘要 A magnetic resonance image is formed by measuring RF signals in an array of RF coils, forming a set of spatial harmonics and tailoring the set of spatial harmonics to form a set of tailored spatial harmonics that are adjusted variations in at least one of angulation of an image plane, field of view, a nd coils sensitivity calibration. The magnetic resonance image may also be form ed by generating a set of encoding functions representative a spatial distribution of receiver coil sensitivities and spatial modulations corresponding to the gradient encoding steps, transforming the set of encodi ng functions to generate a new set of functions representative of distinct spatial positions in the image, and applying the new set of functions to a s et of MR signals to form the magnetic resonance image. Matrices inverted during the process of forming the magnetic resonance image may be conditioned by thresholding the eigenvalues of the matrix prior to inversion.
申请公布号 CA2403211(A1) 申请公布日期 2001.09.20
申请号 CA20012403211 申请日期 2001.03.12
申请人 BETH ISRAEL DEACONESS MEDICAL CENTER, INC. 发明人 SODICKSON, DANIEL K.
分类号 G01R33/48;A61B5/055;G01R33/3415;G01R33/56;G01R33/561;(IPC1-7):G01R33/341 主分类号 G01R33/48
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