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Abstract #1525

T2-weighted Free-breathing 3D Abdominal Imaging Using Magnetization Prepared SPGR

Zheng Zhong1, Xiaozhi Cao1, Congyu Liao1, Zhitao Li1, Ali Syed1, Kawin Setsompop1, and Shreyas S. Vasanawala1
1Radiology, Stanford University, Stanford, CA, United States

Synopsis

T2-weighted imaging is conventionally obtained using multi-slice 2D or 3D fast spin-echo (FSE) sequences. However, FSE suffers from severe specific absorption rate (SAR) issue and motion artifact particularly in the abdomen. A potential approach to address these challenges is using T2-prepared 3D SPGR sequence with a non-Cartesian trajectory such as cones. In this study, we proposed a T2-prepared 3D-cones sequence to achieve T2-weighted abdominal imaging with free breathing. The feasibility of the technique was tested on both healthy subjects and patients.

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Keywords