Computer-assisted quantification of the skull deformity for craniosynostosis from 3D head CT images using morphological descriptor and hierarchical classification

Min Jin Lee; Helen Hong; Kyu Won Shim; Yong Oock Kim

doi:10.1117/12.2254448

3 March 2017 Computer-assisted quantification of the skull deformity for craniosynostosis from 3D head CT images using morphological descriptor and hierarchical classification

Min Jin Lee, Helen Hong, Kyu Won Shim, Yong Oock Kim

Author Affiliations +

Proceedings Volume 10134, Medical Imaging 2017: Computer-Aided Diagnosis; 101343F (2017) https://doi.org/10.1117/12.2254448
Event: SPIE Medical Imaging, 2017, Orlando, Florida, United States

Abstract

This paper proposes morphological descriptors representing the degree of skull deformity for craniosynostosis in head CT images and a hierarchical classifier model distinguishing among normal and different types of craniosynostosis. First, to compare deformity surface model with mean normal surface model, mean normal surface models are generated for each age range and the mean normal surface model is deformed to the deformity surface model via multi-level threestage registration. Second, four shape features including local distance and area ratio indices are extracted in each five cranial bone. Finally, hierarchical SVM classifier is proposed to distinguish between the normal and deformity. As a result, the proposed method showed improved classification results compared to traditional cranial index. Our method can be used for the early diagnosis, surgical planning and postsurgical assessment of craniosynostosis as well as quantitative analysis of skull deformity.

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Min Jin Lee, Helen Hong, Kyu Won Shim, and Yong Oock Kim "Computer-assisted quantification of the skull deformity for craniosynostosis from 3D head CT images using morphological descriptor and hierarchical classification", Proc. SPIE 10134, Medical Imaging 2017: Computer-Aided Diagnosis, 101343F (3 March 2017); https://doi.org/10.1117/12.2254448

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KEYWORDS

Skull

3D modeling

Computed tomography

Bone

Head

3D image processing

Image classification

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