Name: Alexander Korjenevsky

Email: korjenevsky@cplire.ru

CompanyName: IRE RAS

Country: Russia

Abstract: IMAGING OF HUMAN HEAD AND CHEST WITH MAGNETIC INDUCTION TOMOGRAPHY

A. Korjenevsky and S. Sapetsky

Institute of Radio-Engineering and Electronics of Russian Academy of Sciences

The magnetic induction tomography (MIT) is the new technique enabling
visualization of electrical conductivity inside conductive bodies using
alternating magnetic field as sounding agent. The serious advantage of MIT in
comparison with EIT is absence of electric contact with the medium and
transparency of low conductive shells such as skull at investigation of
underlying objects. Only imaging of the saline phantoms with MIT was demonstrated
experimentally till the recently. In this report we present first results of
in vivo imaging achieved with the 16-channel experimental measuring system.
Both dynamic reconstruction with back projection algorithm and static imaging
with artificial neural network are presented. The dynamic images of the chest
for inspiration-expiration data, while demonstrating the same functionality
as EIT images, shows unaccustomed feature related with the chest movement
relative to the inductors and detectors, which are fixed in space, in contrast
to the electrodes in EIT, which are fixed on the thorax. The static images of
the head demonstrate correct anatomical structure of the brain with high
conductive ventricles in the centre. Further optimization of the measuring
system, improvement of the measurement accuracy and reconstruction algorithms
is necessary to get more detailed images.

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