Anatomical atlas of the upper part of the human head for electroencephalography and bioimpedance applications
The objective of this work is to develop a 4D (3D+T) statistical anatomical atlas of the
electrical properties of the upper part of the human head for cerebral electrophysiology and
bioimpedance applications. Approach. The atlas was constructed based on 3D magnetic resonance images
(MRI) of 107 human individuals and comprises the electrical properties of the main internal
structures and can be adjusted for specific electrical frequencies. T1w+T2w MRI images were used to
segment the main structures of the head while angiography MRI was used to segment the main arteries.
The proposed atlas also comprises a time-varying model of arterial brain circulation, based on the
solution of the Navier –Stokes equation in the main arteries and their vascular territories. Main
results. High-resolution, multi-frequency and time-varying anatomical atlases of resistivity,
conductivity and relative permittivity were created and evaluated using a forward problem solv...
Source: Physiological Measurement - Category: Physiology Authors: Fernando S Moura, Roberto G Beraldo, Leonardo A Ferreira and Samuli Siltanen Source Type: research