Research on Factors that Influence the Size of Radiofrequency Ablation Lesions
CAO Weizheng
YAN Qianqian
SUN Yiyong
LIU Baolin
Abstract：To study the influence of 3 independent factors (contact force, power, time) on the depth or diameter of the radiofrequency ablation lesions, and make up the mathematical models between them.The depths and diameters of ablation lesions on fresh porcine heart slices with irrigated catheter of 66 holes under contact force of 10 g, 15 g, 20 g, 25 g, 30 g, 35g, power of 15 w, 20 w, 25 w, time of 30 s, 45 s and 60 s were measured, then analysed and data fitted with Minitab base on current findings.The result showed that there was a positive correlation between depth or diameter of the ablation lesions and the 3 independent factors, accuracy of the mathematic model getting from data fitting was ideal.The confirm functional relationship exists between depth or diameter of the radiofrequency ablation lesions and factors as contact force,radiofrequency power,acting time,and the mathematic model can be used to direct ex-vivo ablation experiments under particular conditions.
Keywords：Ablation with irrigated catheterContact forceActing timeRadiofrequency powerRadiofrequency ablation lesionPrediction model
Publication Date：2017-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：6( 271-276 )