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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