ANATOMICALLY CONSTRAINED ELECTRICAL-IMPEDANCE TOMOGRAPHY FOR ANISOTROPIC BODIES VIA A 2-STEP APPROACH

Authors
Citation
M. Glidewell et Kt. Ng, ANATOMICALLY CONSTRAINED ELECTRICAL-IMPEDANCE TOMOGRAPHY FOR ANISOTROPIC BODIES VIA A 2-STEP APPROACH, IEEE transactions on medical imaging, 14(3), 1995, pp. 498-503
Citations number
17
Categorie Soggetti
Engineering, Biomedical","Radiology,Nuclear Medicine & Medical Imaging
ISSN journal
02780062
Volume
14
Issue
3
Year of publication
1995
Pages
498 - 503
Database
ISI
SICI code
0278-0062(1995)14:3<498:ACETFA>2.0.ZU;2-B
Abstract
This paper will discuss the inclusion of anatomical constraints and an isotropy in static Electrical Impedance Tomography (EIT) using a two-s tep approach to EIT. In the first step, the boundaries between regions of different conductivities are anatomically constrained using Magnet ic Resonance Imaging (MRT) data, In the second step, the conductivity values in different regions are determined, Anisotropic conductivity r egions are included to allow better modeling of the muscle regions (e. g., skeletal muscle) which exhibit a greater conductivity in the direc tion parallel to the muscle fiber, This two-step approach is used to r econstruct the conductivity profile of a canine torso, illustrating it s potential application in extracting conductivity values for bioelect ric modeling.