Comparison Study of Cuff Electrode Designs on RF-Induced Heating Under MRI

This study explores the influence of cuff electrode design, including variations in diameter and wrapping angle, on implantable medical device RF-induced heating under MRI procedure. Numerical and experimental studies were performed to evaluate the heating variation due to these factors inside the ASTM phantom. The results highlight that electrode design can significantly impact heating. It was observed that electrodes with smaller diameters and smaller wrapping angles can have higher RF-induced heating. It was also observed that the electrode designs will not change the shape of the device model. These findings provide critical insights for efficient and safer designs for cuff electrode.