title: Catheter Ablation of Ventricular Arrhythmias using a Fluoroscopy Image Integration Module.
abstract: BACKGROUND
  The impact of the CartoUnivu™ technology (Biosense Webster, Diamond Bar, CA, USA) on fluoroscopy exposure compared to a conventional approach using electroanatomical mapping (Carto 3™) was evaluated in patients undergoing radiofrequency ablation for ventricular tachyarrhythmias (VT).
  
  
  RESULTS
  We prospectively evaluated 23 patients undergoing VT ablation using the CartoUnivu™ technology. The CartoUnivu™ Module integrates fluoroscopic images and cine loops into the electroanatomical mapping system. As a control group, 23 out of 88 VT patients (ablated using conventional fluoroscopy supplemented by electromagnetic mapping with the Carto 3™ System) were matched for age, gender, body surface area, operator, redo-procedure, presence of coronary artery disease, and left ventricular dysfunction using propensity score matching. A significant reduction in fluoroscopy exposure was observed in the CartoUnivu™ group when compared to the conventional group (10.57 ± 7.93 minutes vs 18.52 ± 11.24 minutes, P_= 0.008; 611 cGy/cm(2) vs 1650 cGy/cm(2) , P = 0.001). In multivariate analysis, the CartoUnivu™ module was an independent predictor of reduced fluoroscopy use.
  
  
  CONCLUSIONS
  This is a report on the clinical application of the CartoUnivu system for VT ablation. CartoUnivu™ markedly reduced fluoroscopy time and dose compared to conventional fluoroscopy/electroanatomical mapping.
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Tilko
authors: T
authors: Reents
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Allessandra
authors: A
authors: Buiatti
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Sonia
authors: S
authors: Ammar
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Roger
authors: R
authors: Dillier
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Verena
authors: V
authors: Semmler
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Marta
authors: M
authors: Telishevska
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Felix
authors: F
authors: Bourier
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Carsten
authors: C
authors: Lennerz
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Christian
authors: C
authors: Grebmer
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Bernhardt
authors: B
authors: Kaess
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Christof
authors: C
authors: Kolb
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Gabriele
authors: G
authors: Hessling
authors: Department of Electrophysiology, Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors: Isabel
authors: I
authors: Deisenhofer
mesh_terms: D000368:Aged; D057791:Cardiac Imaging Techniques; D017115:Catheter Ablation / Q000379:methods*; D017023:Coronary Angiography; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D057216:Propensity Score; D011446:Prospective Studies; D011829:Radiation Dosage; D017180:Tachycardia, Ventricular / Q000601:surgery*; D016896:Treatment Outcome
keywords: catheter ablation; image integration; ventricular tachycardia