In vivo human head MRI at 10.5T: A radiofrequency safety study and preliminary imaging results.

ABSTRACT:

Purpose

The purpose of this study is to safely acquire the first human head images at 10.5T.

Methods

To ensure safety of subjects, we validated the electromagnetic simulation model of our coil. We obtained quantitative agreement between simulated and experimental B1+ and specific absorption rate (SAR). Using the validated coil model, we calculated radiofrequency power levels to safely image human subjects. We conducted all experiments and imaging sessions in a controlled radiofrequency safety lab and the whole-body 10.5T scanner in the Center for Magnetic Resonance Research.

Results

Quantitative agreement between the simulated and experimental results was obtained including S-parameters, B1+ maps, and SAR. We calculated peak 10 g average SAR using 4 different realisti

SUBMITTER: Sadeghi-Tarakameh A 

PROVIDER: S-EPMC7695227 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature