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Abstract #4255

Robust fat saturation by combination of SPIR with gradient reversal for TSE at large FOV and coverage

Zhigang Wu1, Yajing Zhang2, Xiuquan Hu1, Jing Zhang1, Guangyu Jiang3, Fei Zeng1, Xiaofang Xu1, Yan Zhao3, and Jiazheng Wang1
1Philips Healthcare, Beijing, China, 2MR Clinical Science, Philips Healthcare (Suzhou), Suzhou, China, 3MR R&D, Philips Healthcare (Suzhou), Suzhou, China


Robust fat suppression remains essential in clinical MRI to improve tissue signal contrast, minimize fat-related artifacts, and enhance image quality. It’s still a challenge to suppress the fat signal when the FOV and coverage is large, especially for abdomen imaging, where uneven fat suppression become common owing to both B0 and B1 field inhomogeneity. We propose a new solution that combines the optimized gradient reversal technique and Spectral Presaturation with Inversion Recovery (SPIR) simultaneously to overcome these challenges. This framework allows to suppress the fat signal robustly in large FOV with whole liver and kidney coverage.

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