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Proceedings Paper

Left atrium pulmonary veins: segmentation and quantification for planning atrial fibrillation ablation
Author(s): R. Karim; R. Mohiaddin; D. Rueckert
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Paper Abstract

The paper presents a technique for detecting detecting left atrium as well as the pulmonary veins of the left atrium by tracing out their centerlines. A vessel detection and traversal process is initiated from the venoatrial junctions. Pulmonary veins draining into the left atrium via these junctions are thus detected, also enabling the detection of the ostium. Ostial diameters are measured from the detected centerlines using a best-fitting ellipse. Quantitative validation of the techniques are reported on nine patient datasets. In only two of the datasets, mis-detections were identified. The ostial diameter measurements indicated an error of at most 5% in most of the cases. We envisage that the techniques presented will facilitate in planning the non-pharmacological treatment of atrial fibrillation using radio-frequency ablation therapy.

Paper Details

Date Published: 13 March 2009
PDF: 11 pages
Proc. SPIE 7261, Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling, 72611T (13 March 2009); doi: 10.1117/12.812509
Show Author Affiliations
R. Karim, Imperial College London (United Kingdom)
R. Mohiaddin, Royal Brompton Hospital (United Kingdom)
D. Rueckert, Imperial College London (United Kingdom)

Published in SPIE Proceedings Vol. 7261:
Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling
Michael I. Miga; Kenneth H. Wong, Editor(s)

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