Title :
A finite element model of the myocardium for radiofrequency catheter ablation
Author :
Shahidi, A.Vahid ; Savard, Pierre
Author_Institution :
Inst. of Biomed. Eng., Univ. de Montreal, Montreal, QC, Canada
fDate :
Oct. 29 1992-Nov. 1 1992
Abstract :
A finite element model was developed to simulate transient temperature distributions produced by radiofrequency catheter ablation. This model incorporated blood, myocardium and torso tissues. The Laplace equation was solved to determine the electric field. The heat generation in the tissues was then computed from the power deposition profile and the bioheat equation was solved to determine the transient temperature distribution, taking into account the convective energy exchange at the blood-myocardium and torso-air interfaces. This model has been used to evaluate some of the factors that influence the thermally-induced damage to the myocardium.
Keywords :
Laplace equations; biological tissues; cardiology; catheters; convection; finite element analysis; hyperthermia; physiological models; Laplace equation; bioheat equation; blood-myocardium interface convective energy exchange; finite element model; myocardium FEM; myocardium tissue; power deposition profile; radiofrequency catheter ablation; thermally induced damage; tissue heat generation; torso tissue; torso-air interface convective energy exchange; transient temperature distributions; Biological system modeling; Heating; Helium;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris
Print_ISBN :
0-7803-0785-2
Electronic_ISBN :
0-7803-0816-6
DOI :
10.1109/IEMBS.1992.5760955
