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ISBI
2007
IEEE

Efficient Use of Cerebral Cortical Thickness to Correct Brain Mr Segmentation

9 years 3 months ago
Efficient Use of Cerebral Cortical Thickness to Correct Brain Mr Segmentation
Efficient, automatic and robust tools for measurement of cerebral cortical thickness would aid diagnosis and longitudinal studies of neurodegenerative disorders. In this work, we segment a 3D magnetic resonance image of the brain using an Expectation-Maximization approach. The definition of thickness used is based on the solution of Laplace’s equation in the cortex. Unlike other works, finite difference equations for calculation of cortical thickness are generalized for anisotropic images in order to avoid resampling the input images. We also developed a method which combines information from the thickness estimation with the segmentation probability maps, in order to detect missegmented sulci and correct the segmentation accordingly.
Thanh-Mai Diep, Pierrick Bourgeat, Sébastie
Added 03 Jun 2010
Updated 03 Jun 2010
Type Conference
Year 2007
Where ISBI
Authors Thanh-Mai Diep, Pierrick Bourgeat, Sébastien Ourselin
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