Abstract #3104

Comparative Analyses of MR-Induced Distal Heating in Novel Filtered Cardiac Pacing Leads Using Two Geometric Configurations

Frank G. Shellock^1,2, Holly Moschiano², Robert S. Johnson², Robert Stevenson², Scott Brainard³, Sam Ye³, Warren Dabney²

¹Shellock R&D Services, Los Angeles, CA, USA; ²Cardiac & Neurology, Greatbatch, Inc., Clarence, NY, USA; ³Cardiac & Neurology, Greatbatch, Inc., Plymouth, MN, USA

MRI related heating may be excessive for lead systems, as in those used for cardiac rhythm management. The heating on a 46-cm control lead and a Band Stop Filter lead were evaluated in a 1.5T MR unit at different positions and geometries in the bore. As the control and Band Stop Filter leads were moved closer to the center of the MR system bore, the heating that occurred at the distal lead tip decreased significantly. The Band Stop Filter lead exhibited a notable temperature decrease in all bore and geometry configurations compared to the control lead.