Abstract #2336
Fast Dynamic Whole-Brain-Coverage MR Thermometry Using Simultaneous Multi-slice Echo Planar Imaging for MR-guided Focused Ultrasound
Feiyu Chen 1 , Kangrong Zhu 2 , Urvi Vyas 3 , Rachelle Bitton 3 , Karen Ying 4 , John M Pauly 2 , and Kim Butts Pauly 3
1
Center for Biomedical Imaging Research,
Department of Biomedical Engineering, Tsinghua
University, Beijing, China,
2
Department
of Electrical Engineering, Stanford University,
Stanford, California, United States,
3
Department
of Radiology, Stanford University, Stanford, California,
United States,
4
Department
of Engineering Physics, Tsinghua University, Beijing,
China
We validate the feasibility of simultaneous multi-slice
EPI to monitor the volumetric temperature of the target
tissue with high temperature accuracy during MRgFUS
treatment. The average uncertainty of the measured
temperature is less than 0.4C for an ex-vivo porcine
tissue. This approach allows researchers to monitor the
temperature of the whole brain, especially the brain
surface and scalp. It can be used to prevent undesired
heating during MRgFUS treatment of the brain.
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