Jason
A. Langley1,2, Qun Zhao1,2
1Department of Physics and Astronomy,
The University of Georgia, Athens, GA, United States; 2Bioimaging
Research Center (BIRC), The University of Georgia, Athens, GA, United States
A
modified self-reference MR thermometry method is presented in this abstract.
We circumvent the phase unwrapping procedure in the self-reference MR
thermometry procedure by utilizing the phase gradient to estimate the
baseline phase map. In the method proposed in this abstract, the phase map is
modeled as a 2D polynomial. The components of the gradient of the model are
then fitted to the components of the phase gradient using 2D weighted least
squares. The proposed procedure is evaluated using two simulated MR
thermometry data sets.