Abstract #3804

Characterization of a MRI-RF Hyperthermia Dual-Function Coil Element Design

Xing Yang¹, Jing Wu², Xu Chu¹, Thomas K. Foo³, Desmond Teck Beng Yeo³

¹Power Conversion Circuits Lab, GE Global Research, Shanghai, China, People's Republic of; ²Electrical & Computer Engineering, Northeastern University, Boston, MA, United States; ³Imaging Technologies, GE Global Research, Niskayuna, NY, United States

During an RF hyperthermia procedure, careful monitoring of tissue temperature is required in the tumor and healthy tissue. The ability to perform targeted heating and monitor temperature with the same multi-channel coil allows for faster acquisition via parallel imaging, and potentially higher SNR due to the smaller elements placed closer to the body. In this study, a MRI-RF hyperthermia dual-function coil element design is proposed, and its working principle is presented along with numerically computed characterization data of the trade-offs involved when the key design parameters are varied. These parameters include antenna dimension, adjacent coil overlap area, inter-element coupling, and antenna phase shifts.