Motion Tracking using Continuous Magnetic Resonance Fingerprinting
Edward S. Hui1, Di Cui1, Jing Cai2, Queenie Chan3, and Peng Cao1
1Diagnostic Radiology, The University of Hong Kong, Hong Kong, Hong Kong, 2Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong, 3Philips Healthcare, Hong Kong, Hong Kong
We proposed a continuous MRF acquisition and retrospective MRF reconstruction for motion tracking during free breathing.
Figure 1. Schematic of the retrospective
reconstruction algorithm of cMRF.
*cMRF_1000 denotes cMRF with 1000
dynamics (or 1000 snapshots) in a single
spiral interleave.
Figure 4.
T1 and T2 maps at different
respiratory bins obtained from 4D Cardiac
Torso digital phantom (reference) and our
proposed cMRF. The inset in the top right
corner of each image shows the region around
the tumor in higher magnification. Note that 40
consecutive snapshots were binned together.