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Abstract #4830

Comparison of RF-Induced Heating of a Vascular Stent in an ASTM Phantom and Two Virtual Human Anatomies in Open and Closed Bore MRI Systems

Eric D. Anttila1, Grant M. Baker1, Alan R. Leewood1, Seoggwan Kim1, and David C. Gross1
1MED Institute Inc., West Lafayette, IN, United States


The primary goal of this study was to compare radiofrequency (RF) induced temperature rises of a stent within the ASTM phantom and two virtual human anatomies in a 1.2 T Hitachi Oasis open bore, 1.5 T Siemens Altea closed bore, and 3.0 T Siemens Prisma closed bore MRI systems for the purpose of MRI labeling according to ASTM F25031. The secondary goal was to simulate RF-induced heating of the same stent within the Duke virtual human model containing 1) internal organs with individual material properties and 2) no internal organs and average tissue properties throughout and compare predicted temperature rises.

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