Abstract #4247

Quasi-Static and Time-Generalized Field Computation Methods Compared to the Moment Method for Performance Evaluations of Coil Arrays in PI at UHF

Mirsad Mahmutovic¹, Sam-Luca JD Hansen¹, Manisha Shrestha¹, and Boris Keil¹

¹Institute of Medical Physics and Radiation Protection, TH Mittelhessen University of Applied Science, Giessen, Germany

Synopsis

Keywords: RF Arrays & Systems, Parallel Imaging, Phased Array, Electromagnetic Field Simulations

In this study, we compared the quasi-static method (QSM), the time-generalized method (TGM), and the method of moments (MoM) for performance evaluations of coil arrays in parallel imaging (PI) at UHF. We have shown that the QSM and the TGM are a good approximation to the MoM solution, and that all three methods perform similarly in a comparative study with a 64-channel head coil. Furthermore, we could show, that the TGM performs better than the QSM at larger distances in the phantom, which may be beneficial for the evaluation of torso coils.

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