Title :
A three-dimensional model for microwave treatment of heart rhythm disorders
Author :
Khebir, Ahmed ; Savard, Pierre
Author_Institution :
Inst. de Biomed. Eng., Montreal Univ., Que., Canada
Abstract :
Presents a three-dimensional transfinite element approach to determine the dissipated power density in the heart chambers during microwave ablation for the treatment of heart rhythm disorders. This approach allows for modeling the heart in its entirety without assuming any axial symmetry. Furthermore, it makes no simplifications, neither on the shape of the microwave antenna nor on its the modes of propagation. It also takes into account the frequency dependence of the dielectric properties of the tissues. Hence, it allows for an accurate and realistic modeling of microwave ablation
Keywords :
cardiology; finite element analysis; hyperthermia; microwave heating; physiological models; accurate realistic modeling; dissipated power density; frequency dependence; heart chambers; heart rhythm disorders; microwave ablation; microwave antenna; microwave treatment; propagation modes; three-dimensional model; three-dimensional transfinite element approach; tissue dielectric properties; Antenna feeds; Blood; Catheters; Electromagnetic heating; Finite element methods; Heart; Microwave antennas; Microwave propagation; Myocardium; Rhythm;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.575117
