Piecewise registration for point-to-surface mapping of cardiac data

Steven S. Harris, Richard A. Robb

Research output: Contribution to journalConference article

2 Scopus citations

Abstract

Patient-specific mapping of point based cardiac data to a segmented heart surface requires accurate point-to-surface registration. The hypothesis is that anatomical movement that occurs between electrophysiological (E-P) data and cardiac image acquisition causes the pulmonary veins to have different orientations relative to the heart. We propose a piecewise registration of the atria veins to produce a more accurate matching of these data sets. We developed phantoms and simulated clinical data accounting for noise and motion to demonstrate the robustness of the point-to-surface registration algorithm. Then three sets of patient data were used to evaluate rigid and piecewise registration, totaling three left atria and eight pulmonary veins. Analysis using the Student's t-test showed the overall average chamfer distance for the three patients was significantly lower with piecewise registration compared to global rigid importance of considering the plasticity and locomotion generally inherent in dynamic biological systems when attempting to match data sets acquired from such systems.

Original languageEnglish (US)
Pages (from-to)146-153
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5029
DOIs
StatePublished - Aug 22 2003
EventMedical Imaging 2003: Visualization, Image-Guided Procedures and Display - San Diego, CA, United States
Duration: Feb 16 2003Feb 18 2003

Keywords

  • Cardiac ablation
  • Electrophysiology
  • Image registration
  • Image-guided procedures

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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