Title :
Computer simulation of an inverse problem for electric current computed tomography using a uniform triangular discretization
Author :
Hussain, M.A. ; Noble, B. ; Becker, B.
Author_Institution :
General Electric Res. & Dev. Center, Schenectady, NY, USA
Abstract :
For the inverse problem of electric current computed tomography, discretization is achieved using a uniform mesh composed of triangular elements. The simulation presented utilizes network analysis, linearization, and iteration to obtain a solution. The network analysis algorithm for the direct as well as the inverse problem is described. It is shown how the matrices used to define the inverse problem can be generated automatically, given only a few parameters that describe the size of the mesh. A way to visualize the result graphically is presented
Keywords :
bioelectric phenomena; computerised tomography; digital simulation; inverse problems; computer simulation; discretization; electric current computed tomography; inverse problem; iteration; linearization; matrices; medical diagnostic imaging; mesh size; network analysis; triangular elements; uniform triangular discretization; Computational modeling; Computed tomography; Computer simulation; Conductivity; Current; Electrodes; Inverse problems; Nonlinear equations; Research and development; Voltage;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95812