Abstract
Catheter ablation of cardiac arrhythmia sources is subject to a number of technological restrictions due to the absence of direct visual control over the manipulated tool, as well as the impossibility of anatomical imaging of arrhythmogenic zones and estimation of the degree and volume of lesion. Location and imaging systems are used to increase the technological efficiency of catheter ablation. These systems make it possible to visualize the electrode movements in the reconstructed volume without roentgenoscopic monitoring. In this work, methods for correction of spatial distortions occurring during location are suggested and discussed. Methods for compensation of the effect of mechanical movements caused by heart contractions and breathing on the accuracy of determination of coordinates of endocardial electrodes are considered. Methods for stabilizing the coordinate determination system during radio-frequency ablation are suggested.
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