Numerical study on MRI RF-induced heating for the trauma screw implanted in three human models

This study investigates the radio frequency (RF)-induced heating for a common medical implanted device, the trauma screw, in different human models under 1.5 T and 3 T magnetic resonance imaging (MRI) systems. Three different human models, Duke, Ella, and Fats from the virtual family project, are used in the simulations. The human models and the device are loaded in a generic 32 ports RF coil. The screws with suitable sizes are implanted in four regions (hip, knee, shoulder, and wrist) for each human model. From the simulation results, the RF-induced heating near the device shows significantly difference within the models. Consequently, the clinically relevant RF induced heating can be patient specific and needs to be investigated individually.