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Related Experiment Videos

Image integration using NavX Fusion: initial experience and validation.

Anthony G Brooks1, Lauren Wilson, Pawel Kuklik

  • 1Cardiovascular Research Centre, Department of Cardiology, Royal Adelaide Hospital and Disciplines of Medicine and Physiology, University of Adelaide, Adelaide, South Australia.

Heart Rhythm
|March 26, 2008
PubMed
Summary
This summary is machine-generated.

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NavX Fusion software accurately integrates computed tomography (CT) images for atrial fibrillation ablation, improving navigation and reducing fluoroscopic time with increased experience.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Electrophysiology

Background:

  • 3D virtual anatomic navigation is crucial for complex arrhythmia mapping and ablation.
  • NavX Fusion software aims to align virtual anatomy with patient CT scans.
  • The accuracy and clinical utility of NavX Fusion require evaluation.

Purpose of the Study:

  • To assess the accuracy of CT image integration using NavX Fusion.
  • To describe the initial clinical experience with NavX Fusion for atrial fibrillation ablation.

Main Methods:

  • 55 patients undergoing atrial fibrillation ablation with NavX Fusion were studied.
  • Left atrial geometries from NavX were compared to CT scans for geometric match.
  • Navigational accuracy and fusion integration/procedural times were recorded.

Related Experiment Videos

Main Results:

  • CT-NavX geometric errors decreased progressively with fusion stages (GEO-1: 6.6mm, GEO-2: 4.1mm, GEO-3: 1.9mm).
  • Navigational accuracy to anatomical surfaces was consistent across fused geometries and CT (3.4mm).
  • Image integration time and normalized fluoroscopic time decreased with increasing case number.

Conclusions:

  • NavX Fusion software provides highly accurate CT image integration for arrhythmia ablation.
  • The system demonstrates a learning curve effect, reducing procedure time and fluoroscopy.
  • This technology enhances the safety and efficiency of atrial fibrillation ablation procedures.