DocumentCode :
429171
Title :
An anatomically based model of small intestine excitation
Author :
Lin, A.S.H. ; Smith, N.P. ; Pullan, A.J. ; Buist, M.L.
Author_Institution :
Bioeng. Inst., Auckland Univ., New Zealand
Volume :
1
fYear :
2004
fDate :
1-5 Sept. 2004
Firstpage :
887
Lastpage :
889
Abstract :
Electrical and magnetic fields are generated by the smooth muscle´s electrical activity in the walls of the gastrointestinal system. These fields can be measured on the torso surface. We present a computational model that is capable of simulating the electrical activity occurring within the small intestine. Finite elements were used to represent the geometry of the small intestine. A finer resolution finite difference mesh was defined within this geometrical mesh and used to solve the equations governing the activation of the intestinal smooth muscle. Initial simulations were performed to illustrate the spread of potential along the small intestine. With further development this model will provide a basis for understanding and interpreting noninvasive magnetic measurements from intestinal smooth muscle.
Keywords :
biomagnetism; electromyography; finite difference methods; medical computing; physiological models; anatomically based model; computational model; electrical fields; finer resolution finite difference mesh; finite element method; gastrointestinal system; geometrical mesh; intestinal smooth muscle; magnetic fields; muscle electrical activity; noninvasive magnetic measurement; small intestine excitation; Computational modeling; Difference equations; Finite difference methods; Finite element methods; Gastrointestinal tract; Geometry; Intestines; Magnetic field measurement; Muscles; Torso; electrical activation; finite difference; finite element; small intestine model;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8439-3
Type :
conf
DOI :
10.1109/IEMBS.2004.1403301
Filename :
1403301
Link To Document :
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