Abstract #5433

MR-safety of mixed-brand of cardiac implantable electronic devices: Comparison of RF induced heating with approved single-brand at 1.5 T and 3.0 T

Issei Fukunaga¹, Shuhei Shibukawa¹, Satoshi Yatsushiro², Kazuya Tawara², Toshiko Nakai³, Haruhiko Abe⁴, Shigeki Aoki⁵, Atsuko Miyajima⁶, and Kagayaki Kuroda⁷

¹Department of Radiological Technology, Juntendo University, Tokyo, Japan, ²BioView, Inc., Tokyo, Japan, ³Department of Medicine, Division of Cardiology, Nihon University School of Medicine, Tokyo, Japan, ⁴Department of Medicine, University of Occupational and Environmental Health, Fukuoka, Japan, ⁵Department of Radiology, Juntendo University Hospital, Tokyo, Japan, ⁶Division of Medical Devices, National Institute of Health Sciences, Kanagawa, Japan, ⁷School of Information Science and Technology, Tokai University, Kanagawa, Japan

Synopsis

Radio-frequency-induced heating around MR-conditional cardiac implantable electronic devices with mixed brand combinations of generator and lead were compared with the approved single brand combinations at 1.5 T and 3.0 T. The generator-lead combinations were selected from three high-share vendors (Boston Scientific, Medtronic, and St. Jude) based on the frequency in clinical practice. Temperature measurements were conducted along with ASTM2182 and ISO10974 at locations corresponding to the right ventricle, right atrium, the generator edge, and contralateral of in the ASTM phantom. The results evaluated by Mann-Whitney's U-test showed no significant difference in temperature increases between the mixed and approved combinations.

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