Hybrid inverse/FDTD computational electromagnetic methodology and its potential application in MR RF field design
Sherman Xuegang Xin 1,2 and Christopher Michael Collins 1
Bernard and Irene Schwartz Center for
Biomedical Imaging, New York University School of
Medicine, New York, NY, United States,
Engineering, Southern Medical University, Guangzhou,
The inverse method in computational electromagnetic
calculation has its particular advantage, that is, the
source electromagnetic field can be specially designed
from the targeted field, which can be designed exactly.
However, it is difficult to directly use inverse method
for the human body in the high-field MR environment,
where the complicated coil-tissue interaction must be
considered. A new methodology, i.e. hybrid inverse/FDTD
method, which has not been reported previously to the
best of the authors knowledge, was proposed here for
goal-oriented RF source field design loaded with human
body at high-field MRI.
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