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Abstract #3700

In vivo pulse sequence design for acceleration of T2 mapping using Compressed sensing with Patch-based Low-Rank Penalty

Dongwook Lee 1 , Sunghong Park 1 , Chuan Huang 2 , Eung Yeop Kim 3 , and Jong Chul Ye 1

1 KAIST, Daejeon, Daejeon, Korea, 2 Harvard Medical School, Boston, United States, 3 Department of Radiology, Gachon University Gil Hospital, Incheon, Korea

Purpose of this study is in vivo acceleration of T2 parameter mapping. To achieve this purpose, random undersampled mask is applied on the pulse sequence of 2D multi-echo spin echo. The images are reconstructed using compressed sensing algorithm with patch based low-rank penalty. And common mono-exponential fitting is used to generate T2 map. The acceleration times are remarkably reduced.

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