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Abstract #0938

Dixon-like multi-contrast GRASE imaging framework: simultaneous acquisition of two T2-weighted spin-echo images and an inverse-T1-weighted stimulated-echo image

Mei-Lan Chu1, Tzu-Cheng Chao2, and Nan-kuei Chen3

1Department of Biomedical Sciences and Engineering, National Central University, Taoyuan, Taiwan, 2Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, 3Department of Biomedical Engineering, University of Arizona, Tucson, AZ, United States

Our novel Dixon-like multi-contrast GRASE imaging framework can simultaneously acquire two distinct T2-weighted and an inverse-T1-weighted images with high scan efficiency. The two single-shot GRASE imaging sequences with phase difference of RF pulses generates signal with spin-echo (SE) signals and stimulated-echo (STE) signals in-phase and 180-degree out-of-phase. A Dixon-like approach can respectively acquire T2-weighted SE-only image and inverse-T1-weighted STE-only images from the data. Multi-contrast images can be efficiently acquired with the proposed framework within clinically feasible scan time.

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