Abstract #2356
Accelerated Model-based Proton Resonance Frequency Shift Temperature Mapping Using Echo-Based GRAPPA Reconstruction
Feiyu Chen 1 , Xinwei Shi 2 , Shuo Chen 3 , Bingyao Chen 4 , Gang Ren 4 , Xing Wei 4 , Shi Wang 3 , and Kui Ying 3
1
Center for Biomedical Imaging Research,
Department of Biomedical Engineering, Tsinghua
University, Beijing, China,
2
Department
of Electrical Engineering, Stanford University,
Stanford, CA, United States,
3
Department
of Engineering Physics, Tsinghua University, Beijing,
China,
4
Department
of Orthopedics, First Affiliated Hospital of PLA General
Hospital, Beijing, China
In this research, we proposed an acceleration method for
model-based PRF temperature mapping using Echo-based
GRAPPA. The method can accelerate the MR temperature
monitoring at a net reduction factor of 2.3. The
temperature uncertainty and temperature RMSE is less
than 1.4C based on the ex-vivo goose liver experiment.
This technique is also insensitive to inter-frame motion
compared with other MR temperature measurement methods.
When combined with other traditional methods, the
combined method can measure the temperature of tissue
with multiple composition.
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