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Abstract #3226

Image Intensity Corrections in ESPIRiT from Eigenvalue Based Spatially Variant Sensitivity Map Rescaling Modifications

Wang Bin1, Zhu Gaojie1, Luo Hai1, Zhou Xiang1, and Zha Leping1,2

1Alltech Medical Systems, Chengdu, China, People's Republic of, 2Alltech Medical Systems America, Cleveland, OH, United States

Images from accelerated acquisition and ESPIRiT reconstruction show inhomogeneous intensity from the original array coil sensitivity distributions, because of the arbitrarily scaled sensitivity (eigenvector) maps. We propose to use the corresponding eigenvalues to restore the proper relative sensitivity scaling in the maps as a method of intensity bias correction, to help better visualization of the anatomies.

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