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Abstract #0563

Fast CEST MR Fingerprinting with Increased Volumetric Coverage using Slice Permuted Acquisition and Deep Learning Reconstruction

Ouri Cohen1, Robert Young2, Christian T Farrar3, and Ricardo Otazo1
1Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, United States, 2Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, United States, 3Radiology, Athinoula A. Martinos Center, Charlestown, MA, United States

Synopsis

CEST imaging is a promising tool for diagnosis and evaluation of treatment response in tumors. However, conventional CEST is not quantitative and requires long acquisition times. A recently developed technique, CEST MR fingerprinting (CEST-MRF), overcomes many of the technical limitations of conventional CEST but still suffers from limited volumetric coverage. In this work, we propose a novel multi-slice CEST-MRF pulse sequence and deep learning reconstruction method to enable volumetric coverage without the need for additional scan time. Numerical simulations and in vivo experiments in a healthy subject are performed to demonstrate feasibility and utility of the proposed multi-slice CEST-MRF technique.

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