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

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.