Title :
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
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;
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
DOI :
10.1109/IEMBS.1994.411914
