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Abstract #4599

Phase Correction in Multi-Breath-Hold MRI with Tracking using Information Entropy

Yuji Iwadate1, Hiroyuki Kabasawa1

1Global Applied Science Laboratory, GE Healthcare, Hino, Tokyo, Japan

The multi-breath-hold approach with slice/slab tracking enables high resolution abdominal MRI, but artifacts derived from nonuniform receive coil sensitivity still remains. We developed a novel technique to reduce residual motion artifacts using information entropy as a cost function to optimize correction phase. This method remarkably reduced artifacts in phantom and volunteer studies without explicit knowledge of coil sensitivity.