title: Non-rigid 2D-3D registration with catheter tip EM tracking for patient specific bronchoscope simulation.
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.
authors.affiliation: Department of Computing, Imperial College London. fani.deligianni@imperial.ac.uk
authors.forename: Fani
authors.initials: F
authors.lastname: Deligianni
authors.forename: Adrian J
authors.initials: AJ
authors.lastname: Chung
authors.forename: Guang-Zhong
authors.initials: GZ
authors.lastname: Yang
mesh_terms: D000465:Algorithms; D001999:Bronchoscopy / Q000379:methods*; D002404:Catheterization / Q000379:methods; D003198:Computer Simulation; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008954:Models, Biological; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013382:Subtraction Technique; D014057:Tomography, X-Ray Computed / Q000379:methods; D014584:User-Computer Interface; D014741:Video Recording / Q000379:methods