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Automatic Intra-operative Generation of Geometric Left Atrium/Pulmonary Vein Models from Rotational X-Ray Angiography

  • Carsten Meyer
  • Robert Manzke
  • Jochen Peters
  • Olivier Ecabert
  • Reinhard Kneser
  • Vivek Y. Reddy
  • Raymond C. Chan
  • Jürgen Weese
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5242)

Abstract

Pre-procedural imaging with cardiac CT or MR has become popular for guiding complex electrophysiology procedures such as those used for atrial fibrillation ablation therapy. Electroanatomical mapping and ablation within the left atrium and pulmonary veins (LAPV) is facilitated using such data, however the pre-procedural anatomy can be quite different from that at the time of intervention. Recently, a method for intra-procedural LAPV imaging has been developed based on contrast-enhanced 3-D rotational X-ray angiography (3-D RA). These intraprocedural data now create a compelling need for rapid and automated extraction of the LAPV geometry for catheter guidance. We present a new approach to automatic intra-procedural generation of LAPV surfaces from 3-D RA volumes. Using model-based segmentation, our technique is robust to imaging noise and artifacts typical of 3-D RA imaging, strongly minimizes the user interaction time required for segmentation, and eliminates inter-subject variability. Our findings in 33 patients indicate that intra-procedural LAPV surface models accurately represent the anatomy at the time of intervention and are comparable to pre-procedural models derived from CTA or MRA.

Keywords

Pulmonary Vein Left Atrium Mitral Annulus Segmentation Error Reference Mesh 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Carsten Meyer
    • 1
  • Robert Manzke
    • 2
  • Jochen Peters
    • 1
  • Olivier Ecabert
    • 1
  • Reinhard Kneser
    • 1
  • Vivek Y. Reddy
    • 3
  • Raymond C. Chan
    • 2
  • Jürgen Weese
    • 1
  1. 1.Philips Research LaboratoriesX-Ray Imaging SystemsAachenGermany
  2. 2.Philips Research North America, Clinical Sites ResearchNYUSA
  3. 3.Experimental Electrophysiology Laboratory, Cardiac Arrhythmia ServiceMassachusetts General HospitalBostonUSA

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