Evaluation of RF Heating of a Multi-Mode Intravascular MRI Coil

Peng Wang¹, Krishna Kurpad¹, Orhan Unal¹

Intravascular MRI coils are investigated in our research group to develop a 3D real-time interventional MRI guidance platform with unique imaging and device tip-tracking capabilities. For safety considerations a model is proposed to predict temperature rise in the vicinity of a multimode intravascular coil due to SAR as well as thermal conduction from the heated wire. Numerical simulations are applied to study the current induction, SAR distribution and thermal conduction. The mechanisms for temperature rise around the coil are evaluated and compared for safe interventional MRI operations.