Analysis of optic nerve head shape

A - Human Necessities – 61 – B

Patent

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A61B 3/12 (2006.01)

Patent

CA 2413872

Methods and apparatus are provided for analysis of 3-dimensional images of an optic nerve head surface topography. Topographic images of the optic nerve head may be analysed to define a topographic model fitted to the topographic image of the optic nerve head about a centre of analysis. The topographic model is defined using model morphological parameters, and the morphological parameters. In some embodiments, the morphological parameters may be used to detect nerve fibre damage or pathology, such as in the diagnosis of glaucoma.

L'invention concerne des procédés et un appareil permettant d'analyser les images tridimensionnelles de la topographie du disque du nerf optique. Ces images topographiques peuvent être analysées de manière à définir un modèle topographique s'intégrant à l'image topographique du disque du nerf optique autour d'un centre d'analyse. Le modèle est défini à l'aide de paramètres morphologiques modèles et des paramètres morphologiques. Dans certains modes de réalisation, les paramètres morphologiques peuvent être utilisés pour détecter des lésions ou une pathologie de la fibre nerveuse, tel que pour diagnostiquer un glaucome.

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