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High anatomical accuracy of a novel high‐resolution wide‐band dielectric imaging system in cryoballoon‐based ablation
Author(s) -
Rottner Laura,
Nodorp Milena,
Jessica Weimann,
Schleberger Ruben,
Sinning Christoph,
Lemoine Marc,
Dinshaw Leon,
Münkler Paula,
Lin Tina,
Meyer Christian,
Reissmann Bruno,
Metzner Andreas,
Rillig Andreas
Publication year - 2021
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/pace.14324
Subject(s) - medicine , ablation , fluoroscopy , catheter ablation , pulmonary vein , nuclear medicine , atrial fibrillation , high resolution , radiology , cardiology , remote sensing , geology
Abstract Purpose Recently, a novel cardiac imaging system based on a wide‐band dielectric technology (KODEX‐EPD) was introduced to guide catheter ablation. The aim of the study was to evaluate this 3D wide‐band dielectric imaging system (WDIS) during cryoballoon (CB)‐based atrial fibrillation (AF) ablation focusing on accuracy of pulmonary vein (PV)‐anatomy. Methods In consecutive patients with symptomatic AF, CB‐based ablation was performed in conjunction with the 3D WDIS. Selective PV‐angiographies were performed, and 3D anatomy of the left atrium (LA) and PVs using the 3D WDIS was created. The ostial diameters of the ipsilateral right‐sided and left‐sided PVs and ostial diameters of the right‐/left‐sided upper/lower PVs demonstrated by selective angiographies were analyzed and compared to 3D WDIS‐based PV visualization. Results In 65 patients (42/65 (65%) male, age 65 ± 9 years, 29/65 (45%) paroxysmal AF) a total of 260 PVs were identified. Median ostial PV‐diameters for the ipsilateral left‐ and right‐sided PVs were 38 [34; 43] and 37 [34; 40.3] mm when assessed fluoroscopically and 40 [35.7; 43] and 39 [35.0; 43] mm as demonstrated by 3D WDIS. There was no statistically significant difference between both methods regarding PV‐diameter measurements. KODEX‐EPD overestimated fluoroscopy measurements by 1.08 mm (95% limits of agreement of ‐1.93 mm and 4.1 mm). Conclusion The novel wide‐band dielectric 3D‐imaging system is feasible to create high‐resolution images of cardiac structures during CB ablation procedures and accurately visualizes PV‐anatomy.