Abstract #3492
Evaluation of MR Fingerprinting at 0.55T
Zhibo S. Zhu1, Nam Gyun Lee2, Ye Tian1, Ahsan Javed3, Mark Griswold4, Adrienne Campbell-Washburn3, and Krishna S. Nayak1
1Department Of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, United States, 2Department Of Biomedical Engineering, University of Southern California, Los Angeles, CA, United States, 3Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States, 4Department of Radiology, Case Western Reserve University, Cleveland, OH, United States
Synopsis
We perform a thorough comparison of MRF with reference relaxometry approaches on a NIST/ISMRM phantom and a healthy volunteer. In the NIST phantom, relative bias from -4.7% to 27.7% for the NiCl2 vials and from 5.01% to 28% for the MnCl2 vials within a biological relevant T1 and T2 range. In-vivo, MRF has good repeatability (variations <2%) but substantial bias in WM and GM against the reference approach.
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