Non-rigid 2d-3d registration with catheter tip EM tracking for patient specific bronchoscope simulation

Authors:
Fani Deligianni;Adrian J. Chung;Guang-Zhong Yang
Affiliations:
Department of Computing, Imperial College London;Department of Computing, Imperial College London;Department of Computing, Imperial College London
Venue:
MICCAI'06 Proceedings of the 9th international conference on Medical Image Computing and Computer-Assisted Intervention - Volume Part I
Year:
2006

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Abstract

This paper investigates the use of Active Shape Models (ASM) to capture the variability of the intra-thoracic airway tree. The method significantly reduces the dimensionality of the non-rigid 2D/3D registration problem and leads to a rapid and robust registration framework. In this study, EM tracking data has been also incorporated through a probabilistic framework for providing a statistically optimal pose given both the EM and the image-based registration measurements. Comprehensive phantom experiments have been conducted to assess the key numerical factors involved in using catheter tip EM tracking for deformable 2D/3D registration.