Please use this identifier to cite or link to this item: http://repositorio.inesctec.pt/handle/123456789/5932
Title: Morphometric analysis of sciatic nerve images: A directional gradient approach
Authors: Rodrigues,InesV.
Pedro Martins Ferreira
Malheiro,AnaR.
Brites,Pedro
Eduardo José Pereira
Hélder Filipe Oliveira
Issue Date: 2014
Abstract: The extraction of morphometric features from images of biological structures is a crucial task for the study of several diseases. Particularly, concerning neuropathies, the state of the myelination process is vital for neuronal integrity and may be an indicator of the disease type and state. Few approaches exist to automatically analyse nerve morphometry and assist researchers in this time consuming task. The aim of this work is to develop an algorithm to detect axons and myelin contours in myelinated fibres of sciatic nerve images, thus allowing the automated assessment and quantification of myelination through the measurement of the g-ratio. The application of a directional gradient together with an active contour algorithm was able to effectively and accurately determine the degree of myelination in an imagiological dataset of sciatic nerves. It was obtained an average error of 1.80%, in comparison with the manual annotation performed by the specialist in all dataset. © 2014 IEEE.
URI: http://repositorio.inesctec.pt/handle/123456789/5932
http://dx.doi.org/10.1109/BIBM.2014.6999165
metadata.dc.type: conferenceObject
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