Evan Cummings1,2, Yuchi Liu2, Kathleen Ropella-Panagis2, Jesse Hamilton1,2, and Nicole Seiberlich1,2
1Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States, 2Radiology, University of Michigan, Ann Arbor, MI, United States
1Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States, 2Radiology, University of Michigan, Ann Arbor, MI, United States
This abstract proposes a method for mapping of T1, T2, and
R2* parameters from rosette MRF data, and tests this method on the ISMRM/NIST
phantom.
Diagram of reconstruction algorithm. The algorithm has 2
main components: the non-linear curve fitting component for R2* estimation, and
the pattern matching component for T1 and T2 estimation.
R2*
quantification results in the ISMRM/NIST phantom. (a) The reference R2* map collected
with a 6-echo GRE sequence. (b) The R2* map created from the composite half-lobe
rosette MRF images. (c) A linear regression between the measured reference
values and rosette MRF values. (d) A table of the R2* values measured in the ISMRM/NIST
phantom.
