Abstract #2218

Heating of lead electrodes disconnected from sacral stimulator during routine lumbar MRI at 3T with receive-only coil

Pallab K Bhattacharyya¹, Howard Goldman², Mark J Lowe¹, Adrienne Quirouet², and Stephen E Jones¹

¹Imaging Institute, Cleveland Clnic, Cleveland, OH, United States, ²Glickman Urological Institute, Cleveland Clnic, Cleveland, OH, United States

RF heating testing during lumbar scans of Medtronic Interstim II (Model 3058) implantable pulse generator (IPG) connected to Medtronic Quadipolar Nerve Stimulator Lead (Model 3889) at 3T whole body Siemens TIM Trio scanner with receive-only cervical-lumbar-thoracic coil was performed. Temperatures of the electrodes were measured by using fiber optic sensors with fluoroptic monitoring with the IPG and lead placed inside an ASTM gel phantom. No electrode heating was observed when the lead was connected with the IPG in any of the scans, while considerable heating was observed when the IPG was disconnected and taken out of the phantom.

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