Electrical Conductivity Characteristics of Meningiomas: Noninvasive Assessment using Electric Properties Tomography
Khin Khin Tha 1 , Ulrich Katscher 2 , Christian Stehning 2 , Shigeru Yamaguchi 3 , Shunsuke Terasaka 3 , Hiroyuki Sugimori 3 , Toru Yamamoto 4 , Noriyuki Fujima 3 , Kohsuke Kudo 3 , Yuriko Suzuki 5 , Marc van Cauteren 5 , and Hiroki Shirato 1
Hokkaido University Graduate School of
Medicine, Sapporo, Hokkaido, Japan,
Research Laboratories, Hamburg, Germany,
University Hospital, Japan,
University Graduate School of Health Sciences, Japan,
To characterize electrical conductivity characteristics
of meningiomas noninvasively, MRI including electric
properties tomography (EPT) was conducted in patients
with meningioma, low grade glioma, and lymphoma. The
conductivity characteristics of meningiomas,
conductivity variations between the tumor and adjacent
gray matter, among tumor grades and subtypes, betweeen
meningiomas and other tumors, were evaluated.
Correlation between the conductivity and Ki67 or mean
diffusivity (MD) values of meningiomas was also tested.
The major histogram metrics of meningioma varied
significantly from gray matter. Meningiomas had lower
minimum and broader width of conductivity histograms
than lymphomas. Its maximum conductivity correlated
inversely with the minimum MD.
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