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A novel hybrid model for deformable image registration in abdominal procedures

  • University of Toronto
  • Saskatchewan Health Authority

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We propose a novel neuro-fuzzy hybrid transformation model for deformable image registration in intra-operative image guided procedures involving large soft tissue deformation. The hybrid model consists of two parts: a physics-based model and a mathematical approximation model. The physics-based model is based on elastic solid mechanics to model major deformation patterns of the central part of organs, and the mathematical approximation model depicts the deformation of the residual part along organ boundary. A neuro-fuzzy technique is employed to seamlessly integrate the two parts into a unified hybrid model. Its unique feature is to incorporate domain knowledge of soft tissue deformation patterns and significantly reduce the number of transformation parameters. We demonstrate the effectiveness of our hybrid model to register liver magnetic resonance (MR) images in human subject study. This technique has the potential to significantly improve intra-operative image guidance in abdominal and thoracic procedures.

Original languageEnglish
Title of host publicationMedical Imaging 2011
Subtitle of host publicationVisualization, Image-Guided Procedures, and Modeling
DOIs
StatePublished - 2011
EventMedical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling - Lake Buena Vista, FL, United States
Duration: Feb 13 2011Feb 15 2011

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7964
ISSN (Print)1605-7422

Conference

ConferenceMedical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling
Country/TerritoryUnited States
CityLake Buena Vista, FL
Period02/13/1102/15/11

Keywords

  • B-spline
  • Deformable transformation
  • Hybrid model
  • Image guidance
  • Image registration
  • Neuro-fuzzy
  • Physics-based model

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