Ablation of Atrial Fibrillation using Novel 4D Catheter Tracking within Auto-Registered LA Angiograms

Clinical Trials Thursday, July 12th, 2012

Stroke.ahajournals.org: July 7, 2012.

We describe a novel fluoroscopy co-registered 4D catheter tracking technology (MGT) used for treatment of patients with atrial fibrillation (AF). The aim of the study was to investigate (i) feasibility of non-fluoroscopic catheter manipulation within dynamic left atrial chamber models, (ii) integration of the technology into an established electroanatomical mapping system (EAMS), and (iii) potential clinical impact.

Methods and Results—Forty-nine patients received an AF ablation using MGT enabled NavX-EnSite. Matched patients ablated with a conventional NavX-EnSite system served as control group. MGT was utilized for deployment of diagnostic catheters within pre-acquired cine loops, for non-fluoroscopic chamber mapping within dynamic angiograms, and for 4D tagging of anatomical landmarks. Integration with the EAMS allowed correction of field distortions and a reference tool to detect and correct map shifts.  Read More

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