Abstract:

Atrial fibrillation, atrial flutter and ventricular tachycardia are widespread diseases, especially in advanced age. According to the Federal Statistical Office, more than 19265 people died from atrial fibrillation and atrial flutter in 2015 [1]. In these diseases, unexpected electrical signals occur in the heart. Firstly, these diseases are treated with medication, but if that does not help, so-called catheter ablation treatments are used. For this, an ablation catheter is inserted into the heart and then scars the corresponding area which send the undesirable signals. However, in order to determine exactly where this ablation is to take place, so-called mapping catheters are used. Mapping catheter measure the heart activities. The amplitudes of the measured signals are an important factor for the treating cardiologist to recognize the undesirable heart activities. In setting the ablation scars, the cardiologists often rely on their vast experience. In addition, the success rate of this treatment is 60-80% in the first trial, which increases to 90% after a second intervention [2]. In order to examine more closely, how reliable the used markers are: The intracardiac signals are measured in this work using computer modelling, with modifications of certain parameters. This is intended to better interpret the measured signals in future...