New approaches to catheter navigation for interventional radiology simulation.

Full Abstract

For over 20 years, interventional methods have improved the outcomes of patients with cardiovascular disease. However, these procedures require an intricate combination of visual and tactile feedback and extensive training periods. In this paper, we describe a series of novel approaches that have lead to the development of a high-fidelity simulation system for interventional neuroradiology. In particular we focus on a new approach for real-time deformation of devices such as catheters and guidewires during navigation inside complex vascular networks. This approach combines a real-time incremental Finite Element Model, an optimization strategy based on substructure decomposition, and a new method for handling collision response in situations where the number of contacts points is very large. We also briefly describe other aspects of the simulation system, from patient-specific segmentation to the simulation of contrast agent propagation and fast volume rendering techniques for generating synthetic X-ray images in real-time.

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Author information

Author/s: Cotin, S (S); Duriez, C (C); Lenoir, J (J); Neumann, P (P); Dawson, S (S);

Affiliation: Sim Group, CIMIT, Cambridge, MA 02139, USA. Cotin.Stephane(-atsign-)mgh.Harvard.edu

Journal and publication information

Publication Type: Evaluation Studies; Journal Article

Journal: Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention (Med Image Comput Comput Assist Interv Int Conf Med Image Comput Comput Assist Interv), published in Germany. (Language: eng)

Reference: 2005-; vol 8 (issue Pt 2) : pp 534-42

Dates: Created 2006/05/11; Completed 2006/06/06;

PMID: 16686001, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Algorithms
Angiography - methods
Artificial Intelligence
Catheterization - methods
Humans
Imaging, Three-Dimensional - methods
Models, Biological

Models, Biological
Radiographic Image Enhancement - methods
Radiographic Image Interpretation, Computer-Assisted - methods
Radiology, Interventional - methods
Reproducibility of Results
Sensitivity and Specificity
Surgery, Computer-Assisted - methods

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