Abstract #4288

Degree of RF MRI Coil Detuning and SAR Variations over an Anatomically Realistic Respiratory Cycle Modeled with the Finite Element Method

Anh Tran¹, Sergey Makarov^1,2, and Harshal Tankaria

¹Worcester Polytechnic Institute, Worcester, MA, United States, ²NEVA Electromagnetics, LLC, Yarmouth Port, MA, United States

Respiratory motion is an important problem in Magnetic Resonance Imaging (MRI), contributing to image blurring during data acquisition and coil detuning. Using the concept of an ideal (perfectly matched and tuned at all available ports) RF transmit coil and the VHP-Female v4.0 dynamic CAD model, we estimate the detuning of a full-body RF coil detuning during the respiratory cycle. Our results show that the computed resonant capacitance values change by at most 0.5%.

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