Abstract #4555

EPI based Dual-stage MR Fingerprinting for T1, T2, and T2* mapping

Young-Jung Yang¹, Pan Ki Kim^1,2,3, Dong Jin Im¹, Donghyun Hong⁴, and Byoung Wook Choi¹

¹Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of, ²Center for NanoMedicine, Institute for Basic Science (IBS), Seoul, Korea, Republic of, ³Yonsei-IBS Institute, Yonsei University, Seoul, Korea, Republic of, ⁴Erwin L. Hahn Institute for Magnetic Resonance Imaging, University of Duisburg-Essen, Essen, Germany

We propose an improved MR fingerprinting which can generate T1, T2, and T2* maps simultaneously. This method is based on single-shot EPI and signal acquisition consists of dual-stage divided by fixed and variable echo time. Dictionary generation and pattern matching were also modified in accordance with acquisition scheme. The feasibility of proposed method was demonstrated by phantom study and the MRF results are well correlated with the conventional T1, T2, and T2* maps. In-vivo brain MRF was also performed with a healthy volunteer.

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