Catheter Ablation of Ventricular Arrhythmias using a Fluoroscopy Image Integration Module

Area of Science:

• Cardiology
• Medical Technology
• Electrophysiology

Background:

• Ventricular arrhythmias (VT) ablation procedures often involve significant fluoroscopy exposure.
• Conventional methods rely on electroanatomical mapping (Carto 3™) supplemented by fluoroscopy.
• Minimizing radiation exposure is crucial for patient and operator safety.

Purpose of the Study:

• To evaluate the impact of CartoUnivu™ technology on fluoroscopy exposure during VT ablation.
• To compare fluoroscopy time and radiation dose between CartoUnivu™ and conventional approaches.

Main Methods:

• Prospective evaluation of 23 patients undergoing VT ablation with CartoUnivu™.
• Propensity score matching to create a control group of 23 patients from 88 undergoing conventional ablation (Carto 3™).
• Integration of fluoroscopic images and cine loops into the electroanatomical mapping system with CartoUnivu™.

Main Results:

• CartoUnivu™ group showed significantly reduced fluoroscopy time (10.57 ± 7.93 min) compared to the conventional group (18.52 ± 11.24 min).
• Radiation dose was markedly lower in the CartoUnivu™ group (611 cGy/cm²) versus the conventional group (1650 cGy/cm²).
• Multivariate analysis identified CartoUnivu™ as an independent predictor of reduced fluoroscopy use.

Conclusions:

• CartoUnivu™ technology offers a significant reduction in fluoroscopy time and radiation dose for VT ablation.
• This technology represents a clinical advancement in reducing radiation exposure during electrophysiological procedures.
• The findings support the adoption of CartoUnivu™ for safer VT ablation procedures.