A piecewise patch-to-model matching method for image-guided cardiac catheter ablation

Jiquan Liu, Maryam E. Rettmann, David R. Holmes, Huilong Duan, Richard A. Robb

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Accurate and fast fusion and display of real-time images of anatomy and associated data is critical for effective use in image guided procedures, including image guided cardiac catheter ablation. We have developed a piecewise patch-to-model matching method, a modification of the contractive projection point technique, for accurate and rapid matching between an intra-operative cardiac surface patch and a pre-operative cardiac surface model. Our method addresses the problems of fusing multi-modality images and using non-rigid deformation between a surface patch and a surface model. A projection lookup table, K-nearest neighborhood search, and a final iteration of point-to-projection are used to reliably find the surface correspondence. Experimental results demonstrate that the method is fast, accurate and robust for real-time matching of intra-operative surface patches to pre-operative 3D surface models of the left atrium.

Original languageEnglish (US)
Pages (from-to)324-332
Number of pages9
JournalComputerized Medical Imaging and Graphics
Issue number4
StatePublished - Jun 2011


  • Cardiac catheter ablation
  • Contractive point projection
  • Imaged-guided surgery
  • Patch-to-model matching
  • Point-to-projection

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Computer Vision and Pattern Recognition
  • Health Informatics
  • Computer Graphics and Computer-Aided Design


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