Abstract #4184

Motion-resolved and Free-breathing Liver MRF

Cao Peng¹, Zuojun Wang¹, Chenyang Liu², Tian Li², Edward S. Hui³, and Jing Cai²

¹1. Department of Diagnostic Radiology, The University of Hong Kong, Hong Kong, Hong Kong, ²3. Department of Health Technology & Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong, ³The Hong Kong Polytechnic University, Kowloon, Hong Kong

Synopsis

We developed a motion-resolved and free-breathing liver magnetic resonance fingerprinting (MRF) protocol. The deformation maps were obtained from the first singular image of MRF data. The reconstruction method enforced the consistency of the MRF data with the deformation maps by adding the deformation maps to the encoding matrix. MRF was tested on four healthy volunteers. We demonstrated a motion-resolved MRF with a nominal frame rate of 2.5 Hz for free-breathing liver imaging.

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