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Effect of field strength on RF power deposition near conductive leads: A simulation study of SAR in DBS lead models during MRI at 1.5 T-10.5 T.

Ehsan KazemivalipourAlireza Sadeghi-TarakamehBoris KeilYigitcan EryamanErgin AtalarLaleh Golestanirad
Published in: PloS one (2023)
At higher static fields, MRI is not necessarily more dangerous than at lower fields for patients with conductive leads. Specifically, when a conservative safety criterion, such as constraints on the global SAR, is imposed, coils at a higher resonant frequency tend to generate a lower local SAR around implanted leads due to the decreased B1+ and, by proxy, E field levels.
Keyphrases
  • contrast enhanced
  • magnetic resonance imaging
  • computed tomography
  • magnetic resonance