Abstract #3302
The dielectric properties of brain tissues: variation in electrical conductivity with tissue sodium concentration and tissue water content at 3T/4T
YuPeng Liao 1 , Sandro Romanzetti 1 , Vincent Gras 1 , DengFeng Huang 1 , and N. Jon Shah 1,2
1
Institute of Neuroscience and Medicine-4,
Forschungszentrum Juelich, Juelich, Germany,
2
JARA-Faculty
of Medicine, RWTH Aachen University, Aachen, Germany
MRI can be used to non-invasively estimate in vivo
electrical conductivity, tissue water content, tissue
sodium content (TSC) . In this study we compare proton
density (PD), TSC and conductivity distributions in
healthy volunteers. This combined study of the three
maps, conductivity, PD, and TSC for the first time,
allows us to describe the contribution of the tissue
water contents and tissue ion concentration (Na+) to the
tissue conductivity data and empirical relationship
models may be used to predict dielectric properties in
other frequency and tissues.
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