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IEEE Trans Med Imaging. 2008 Feb;27(2):161-70. doi: 10.1109/TMI.2007.903576.

A surface-based approach to quantify local cortical gyrification.

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  • 1Service Médico-Pédagogique, Department of Psychiatry, University of Geneva School of Medicine, Geneva, Switzerland. marie.schaer@medecine.unige.ch

Abstract

The high complexity of cortical convolutions in humans is very challenging both for engineers to measure and compare it, and for biologists and physicians to understand it. In this paper, we propose a surface-based method for the quantification of cortical gyrification. Our method uses accurate 3-D cortical reconstruction and computes local measurements of gyrification at thousands of points over the whole cortical surface. The potential of our method to identify and localize precisely gyral abnormalities is illustrated by a clinical study on a group of children affected by 22q11 Deletion Syndrome, compared to control individuals.

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