The inclusion of anatomical constraints and anisotropy in three-dimensional electrical impedance tomography

Author

Glidewell, Michael E. ; Ng, Kwong T.

Author_Institution

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

fYear

1994

fDate

3-6 Nov 1994

Abstract

Electrical impedance tomography (EIT) involves determining the electrical conductivity inside a biological body, given electrical impedance measurements along the surface of the body. The authors discuss the use of anatomical constraints in EIT algorithms and the subsequent inclusion of anisotropy. The techniques described in a previous paper (see ibid., vol. 15, p.806-7, 1993) for the 2-D case are expanded here to include 3-D cases. A formulation for the 3-D case along with test results is presented

Keywords

electric impedance imaging; 3D electrical impedance tomography; anatomical anisotropy; anatomical constraints; biological body electrical conductivity; conductivity profile reconstruction; forward model; inverse algorithm; medical diagnostic imaging; Anisotropic magnetoresistance; Bioelectric phenomena; Computed tomography; Conductivity; Impedance measurement; Magnetic resonance imaging; Muscles; Myocardium; Surface impedance; Tensile stress; Testing; Tomography; Torso;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE

Conference_Location

Baltimore, MD

Print_ISBN

0-7803-2050-6

Type

conf

DOI

10.1109/IEMBS.1994.411914

Filename

411914