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Segmentation of the Outer Vessel Wall of the Common Carotid Artery in CTA | IEEE Journals & Magazine | IEEE Xplore

Segmentation of the Outer Vessel Wall of the Common Carotid Artery in CTA


Abstract:

A novel method is presented for carotid artery vessel wall segmentation in computed tomography angiography (CTA) data. First the carotid lumen is semi-automatically segme...Show More

Abstract:

A novel method is presented for carotid artery vessel wall segmentation in computed tomography angiography (CTA) data. First the carotid lumen is semi-automatically segmented using a level set approach initialized with three seed points. Subsequently, calcium regions located within the vessel wall are automatically detected and classified using multiple features in a GentleBoost framework. Calcium regions segmentation is used to improve localization of the outer vessel wall because it is an easier task than direct outer vessel wall segmentation. In a third step, pixels outside the lumen area are classified as vessel wall or background, using the same GentleBoost framework with a different set of image features. Finally, a 2-D ellipse shape deformable model is fitted to a cost image derived from both the calcium and vessel wall classifications. The method has been validated on a dataset of 60 CTA images. The experimental results show that the accuracy of the method is comparable to the interobserver variability.
Published in: IEEE Transactions on Medical Imaging ( Volume: 29, Issue: 1, January 2010)
Page(s): 65 - 76
Date of Publication: 23 June 2009

ISSN Information:

PubMed ID: 19556191

References

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