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Statistical shape analysis of neuroanatomical structures based on medial models

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Title: Statistical shape analysis of neuroanatomical structures based on medial models
Authors: Styner, M. martin_styner@ieee.org, Gerig, G., Lieberman, J., Jones, D., Weinberger, D.
Source: Medical Image Analysis. Sep2003, Vol. 7 Issue 3, p207. 14p.
Subjects: Neuroanatomy, Pathology, Spherical harmonics
Abstract: Knowledge about the biological variability of anatomical objects is essential for statistical shape analysis and discrimination between healthy and pathological structures. This paper describes a novel approach that incorporates the variability of an object population into the generation of a characteristic 3D shape model. The proposed shape representation is a coarse-scale sampled medial description derived from a fine-scale spherical harmonics (SPHARM) boundary description. This medial description is composed of a net of medial samples (m-rep) with fixed graph properties. The medial model is computed automatically from a predefined shape space using pruned 3D Voronoi skeletons. A new method determines the stable medial branching topology from the shape space. An intrinsic coordinate system and an implicit correspondence between shapes is defined on the medial manifold. Several studies of biological structures clearly demonstrate that the novel representation has the promise to describe shape changes in a natural and intuitive way. A new medial shape similarity study of group differences between monozygotic and dizygotic twins in lateral ventricle shape demonstrates the meaningful and powerful representation of local and global form. [Copyright &y& Elsevier]
Copyright of Medical Image Analysis is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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PubType: Academic Journal
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  Data: Statistical shape analysis of neuroanatomical structures based on medial models
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  Data: <searchLink fieldCode="AR" term="%22Styner%2C+M%2E%22">Styner, M.</searchLink><i> martin_styner@ieee.org</i><br /><searchLink fieldCode="AR" term="%22Gerig%2C+G%2E%22">Gerig, G.</searchLink><br /><searchLink fieldCode="AR" term="%22Lieberman%2C+J%2E%22">Lieberman, J.</searchLink><br /><searchLink fieldCode="AR" term="%22Jones%2C+D%2E%22">Jones, D.</searchLink><br /><searchLink fieldCode="AR" term="%22Weinberger%2C+D%2E%22">Weinberger, D.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Medical+Image+Analysis%22">Medical Image Analysis</searchLink>. Sep2003, Vol. 7 Issue 3, p207. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Neuroanatomy%22">Neuroanatomy</searchLink><br /><searchLink fieldCode="DE" term="%22Pathology%22">Pathology</searchLink><br /><searchLink fieldCode="DE" term="%22Spherical+harmonics%22">Spherical harmonics</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Knowledge about the biological variability of anatomical objects is essential for statistical shape analysis and discrimination between healthy and pathological structures. This paper describes a novel approach that incorporates the variability of an object population into the generation of a characteristic 3D shape model. The proposed shape representation is a coarse-scale sampled medial description derived from a fine-scale spherical harmonics (SPHARM) boundary description. This medial description is composed of a net of medial samples (m-rep) with fixed graph properties. The medial model is computed automatically from a predefined shape space using pruned 3D Voronoi skeletons. A new method determines the stable medial branching topology from the shape space. An intrinsic coordinate system and an implicit correspondence between shapes is defined on the medial manifold. Several studies of biological structures clearly demonstrate that the novel representation has the promise to describe shape changes in a natural and intuitive way. A new medial shape similarity study of group differences between monozygotic and dizygotic twins in lateral ventricle shape demonstrates the meaningful and powerful representation of local and global form. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Medical Image Analysis is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/S1361-8415(02)00110-X
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              Text: Sep2003
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