Brain Tissue Conductivity Measurements with MR-Electrical Properties Tomography: An In Vivo Study.

ABSTRACT: First in vivo brain conductivity reconstructions using Helmholtz MR-Electrical Properties Tomography (MR-EPT) have been published. However, a large variation in the reconstructed conductivity values is reported and these values differ from ex vivo conductivity measurements. Given this lack of agreement, we performed an in vivo study on eight healthy subjects to provide reference in vivo brain conductivity values. MR-EPT reconstructions were performed at 3 T for eight healthy subjects. Mean conductivity and standard deviation values in the white matter, gray matter and cerebrospinal fluid (σ_WM, σ_GM, and σ_CSF) were computed for each subject before and after erosion of regions at tissue boundaries, which are affected by typical MR-EPT reconstruction errors. Th

SUBMITTER: Mandija S 

PROVIDER: S-EPMC7803705 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature