BACKGROUND: The outcome of catheter ablation procedures of cardiac arrhythmias depends on the ability to evaluate the underlying mechanism and to depict target sites for ablation. Fusion of different imaging modalities within one system may improve electroanatomic modeling and facilitate ablation procedures. OBJECTIVES: The purpose of this study was to study the feasibility of fusion of multislice computed tomography (MSCT) with electroanatomic mapping to guide radiofrequency catheter ablation of atrial arrhythmias. METHODS: Sixteen patients (15 men, age 54 +/- 7 years) with drug-refractory atrial fibrillation (AF) underwent 64-slice MSCT within 2 days before radiofrequency catheter ablation. MSCT data were imported to the Carto electroanatomic mapping system. Using the new CartoMerge Image Integration Module, the MSCT images and the electroanatomic map were aligned. A statistical algorithm provided information about the accuracy of the fusion process. RESULTS: In all patients, MSCT images could be fused with the electroanatomic map. Mean distance between the mapping points and the MSCT surface ranged from 1.7 +/- 1.2 mm to 2.8 +/- 1.8 mm. This resulted in an average of 2.1 +/- 0.2 mm for the patient group as a whole. CONCLUSION: MSCT images can be fused with the three-dimensional electroanatomic mapping system in an accurate manner. Anatomy-based catheter ablation procedures for atrial arrhythmias may be facilitated by integration of different imaging modalities.
BACKGROUND: The outcome of catheter ablation procedures of cardiac arrhythmias depends on the ability to evaluate the underlying mechanism and to depict target sites for ablation. Fusion of different imaging modalities within one system may improve electroanatomic modeling and facilitate ablation procedures. OBJECTIVES: The purpose of this study was to study the feasibility of fusion of multislice computed tomography (MSCT) with electroanatomic mapping to guide radiofrequency catheter ablation of atrial arrhythmias. METHODS: Sixteen patients (15 men, age 54 +/- 7 years) with drug-refractory atrial fibrillation (AF) underwent 64-slice MSCT within 2 days before radiofrequency catheter ablation. MSCT data were imported to the Carto electroanatomic mapping system. Using the new CartoMerge Image Integration Module, the MSCT images and the electroanatomic map were aligned. A statistical algorithm provided information about the accuracy of the fusion process. RESULTS: In all patients, MSCT images could be fused with the electroanatomic map. Mean distance between the mapping points and the MSCT surface ranged from 1.7 +/- 1.2 mm to 2.8 +/- 1.8 mm. This resulted in an average of 2.1 +/- 0.2 mm for the patient group as a whole. CONCLUSION: MSCT images can be fused with the three-dimensional electroanatomic mapping system in an accurate manner. Anatomy-based catheter ablation procedures for atrial arrhythmias may be facilitated by integration of different imaging modalities.
Authors: E di Cesare; I Carbone; A Carriero; M Centonze; F De Cobelli; R De Rosa; P Di Renzi; A Esposito; R Faletti; R Fattori; M Francone; A Giovagnoni; L La Grutta; G Ligabue; L Lovato; R Marano; M Midiri; L Natale; A Romagnoli; V Russo; F Sardanelli; F Cademartiri Journal: Radiol Med Date: 2012-04-01 Impact factor: 3.469
Authors: Adam C Kean; Sarah K Gelehrter; Ira Shetty; Macdonald Dick; David J Bradley Journal: J Interv Card Electrophysiol Date: 2010-09-28 Impact factor: 1.900
Authors: E Kevin Heist; Jianping Chevalier; Godtfred Holmvang; Jagmeet P Singh; Patrick T Ellinor; David J Milan; Andre D'Avila; Theofanie Mela; Jeremy N Ruskin; Moussa Mansour Journal: J Interv Card Electrophysiol Date: 2007-01-25 Impact factor: 1.900
Authors: Richard Kobza; Christoph Auf der Maur; Claudia Kurtz; Alexander Hoffmann; Bernhard Allgayer; Paul Erne Journal: J Interv Card Electrophysiol Date: 2007-09-06 Impact factor: 1.900
Authors: D N Stephens; J Cannata; Ruibin Liu; Jian Zhong Zhao; K K Shung; Hien Nguyen; R Chia; A Dentinger; D Wildes; K E Thomenius; A Mahajan; K Shivkumar; Kang Kim; M O'Donnell; A Nikoozadeh; O Oralkan; P T Khuri-Yakub; D J Sahn Journal: IEEE Trans Ultrason Ferroelectr Freq Control Date: 2008-07 Impact factor: 2.725