Improved segmentation of focal cortical dysplasia lesions on MRI using expansion towards cortical boundaries

Abstract : Focal cortical dysplasia (FCD), a malformation of cortical development, is an important cause of intractable epilepsy. On magnetic resonance images (MRI), FCD lesions are difficult to distinguish from healthy cortex and defining their spatial extent is challenging. We previously introduced a method to segment FCD lesions on MRI, relying on a 3D deformable model driven by MR features of FCD. In the present paper, we propose to improve our approach by adding a second evolution step which expands the result towards the cortical boundaries. A quantitative evaluation was performed in 18 FCD patients by comparison with manually traced lesion labels. The proposed approach achieved a strong agreement with the manual labels and substantially improved the results obtained with our previous method.
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Communication dans un congrès
3rd IEEE International Symposium on Biomedical Imaging: Nano to Macro (ISBI), 2006, Arlington, VA, USA, United States. pp.323-326, 2006
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https://hal.inria.fr/inria-00615584
Contributeur : Project-Team Asclepios <>
Soumis le : vendredi 19 août 2011 - 16:55:57
Dernière modification le : jeudi 13 décembre 2018 - 01:33:29

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  • HAL Id : inria-00615584, version 1

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Olivier Colliot, Tommaso Mansi, P. Besson, N. Bernasconi, A. Bernasconi. Improved segmentation of focal cortical dysplasia lesions on MRI using expansion towards cortical boundaries. 3rd IEEE International Symposium on Biomedical Imaging: Nano to Macro (ISBI), 2006, Arlington, VA, USA, United States. pp.323-326, 2006. 〈inria-00615584〉

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