Registration of three-dimensional cardiac catheter models to single-plane fluoroscopic images | IEEE Journals & Magazine | IEEE Xplore

Registration of three-dimensional cardiac catheter models to single-plane fluoroscopic images


Abstract:

Transvenous cardiac procedures require accurate positioning of catheters within the geometrically complex cavities of the heart. Recently, nonfluoroscopic catheter tracki...Show More

Abstract:

Transvenous cardiac procedures require accurate positioning of catheters within the geometrically complex cavities of the heart. Recently, nonfluoroscopic catheter tracking technologies have been developed to quantitate the (degrees-of-freedom) three-dimensional positions of intracardiac catheters. This paper presents a projection-Procrustes method to register an animated three-dimensional (3-D) model of multiple intracardiac catheters with a single-plane fluoroscopic image. Applying the computed transformation to the catheter coordinates enables the animated 3-D model of the catheters to be viewed from the same perspective as the fluoroscopic image. Mathematical simulations show that the computed transformation parameters are sensitive to both the position errors in the 3-D catheter coordinates and to the spatial distribution of the catheter-mounted transducers. Simulations with a realistic geometric model of three catheters with four transducers per catheter showed an angular error of 1.91/spl deg//spl plusmn/0.27/spl deg/ for 3-D catheter position errors of 2.0 mm. An in vitro experiment demonstrated the feasibility of the method using a water tank phantom of three catheters and fluoroscopic images taken over an 80/spl deg/ range. The mean angular error was 0.61/spl deg//spl plusmn/0.48/spl deg/. The results of this study indicate that the projection-Procrustes method is a useful tool for registering 3-D catheter tracking models to single-plane fluoroscopic images.
Published in: IEEE Transactions on Biomedical Engineering ( Volume: 46, Issue: 12, December 1999)
Page(s): 1471 - 1479
Date of Publication: 06 August 2002

ISSN Information:

PubMed ID: 10612905

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