Anatomically constrained electrical impedance tomography for anisotropic bodies via a two-step approach

Author

Glidewell, Michael ; Ng, Kwong T.

Author_Institution

Dept. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

Volume

14

Issue

3

fYear

1995

fDate

9/1/1995 12:00:00 AM

Firstpage

498

Lastpage

503

Abstract

Discusses the inclusion of anatomical constraints and anisotropy in static Electrical Impedance Tomography (EIT) using a two-step approach to EIT. In the first step, the boundaries between regions of different conductivities are anatomically constrained using Magnetic Resonance Imaging (MRI) data. In the second step, the conductivity values in different regions are determined. Anisotropic conductivity regions are included to allow better modeling of the muscle regions (e.g., skeletal muscle) which exhibit a greater conductivity in the direction parallel to the muscle fiber. This two-step approach is used to reconstruct the conductivity profile of a canine torso, illustrating its potential application in extracting conductivity values for bioelectric modeling

Keywords

electric impedance imaging; 2-step approach; anatomically constrained electrical impedance tomography; anisotropic bodies; bioelectric modeling; canine torso; different conductivity regions; magnetic resonance imaging data; medical diagnostic imaging; muscle fiber; skeletal muscle; static electrical impedance tomography; Anisotropic magnetoresistance; Bioelectric phenomena; Conductivity; Electric potential; Image reconstruction; Impedance; Magnetic resonance imaging; Muscles; Tomography; Torso;

fLanguage

English

Journal_Title

Medical Imaging, IEEE Transactions on

Publisher

ieee

ISSN

0278-0062

Type

jour

DOI

10.1109/42.414615

Filename

414615