Abstract #3391
PET-MRF: One-step 6-minute multi-parametric PET-MR imaging using MR fingerprinting and multi-modality joint image reconstruction
Florian Knoll 1,2 , Martijn A Cloos 1,2 , Thomas Koesters 1,2 , Michael Zenge 3 , Ricardo Otazo 1,2 , and Daniel K Sodickson 1,2
1
Center for Advanced Imaging Innovation and
Research (CAI2R), NYU School of Medicine, New York, NY,
United States,
2
Bernard
and Irene Schwartz Center for Biomedical Imaging,
Department of Radiology, NYU School of Medicine, New
York, NY, United States,
3
Siemens
Medical Solutions USA, Malvern, PA, United States
Despite the extensive opportunities offered by PET-MR
systems, their use is still far from routine clinical
practice. While it is feasible to acquire PET data in
about 5 minutes, collecting the clinically relevant
variety of traditional MR contrasts requires
substantially more time. This bottleneck formed by the
traditional MR paradigm leads to inefficient use of the
PET component. This work proposes a one-step procedure
that merges the MR fingerprinting framework with the PET
acquisition, and employs a dedicated multi-modality
reconstruction to enable a 6 minute comprehensive PET-MR
exam, which can provide the majority of clinical MR
contrasts alongside quantitative parametric maps of the
relaxation parameters (T1,T2) together with improved PET
images.
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