Heart arrhythmia is caused by abnormal electrical conduction through the myocardium, which in some cases, can be treated with heat. One of the challenges is to reduce temperature peaks through the process, that could cause undesired consequences like healthy cells destruction. In this work, pulsatile heat is used to modulate induced temperature fields. A three-dimensional model of the myocardium, catheter and blood flow is developed. Porous media, heat conduction and Navier-Stokes equations are respectively employed for each domain. Results are presented for different pulsatile conditions, in order to show when an ablation zone is obtained without any undesired temperature peaks.

The effects of pulsating heating on radiofrequency catheter ablation

iasiello marcello;andreozzi assunta;bianco nicola;
2019

Abstract

Heart arrhythmia is caused by abnormal electrical conduction through the myocardium, which in some cases, can be treated with heat. One of the challenges is to reduce temperature peaks through the process, that could cause undesired consequences like healthy cells destruction. In this work, pulsatile heat is used to modulate induced temperature fields. A three-dimensional model of the myocardium, catheter and blood flow is developed. Porous media, heat conduction and Navier-Stokes equations are respectively employed for each domain. Results are presented for different pulsatile conditions, in order to show when an ablation zone is obtained without any undesired temperature peaks.
978-0-9562914-5-5
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11588/756936
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