Robust 3D reconstruction and mean-shift clustering of motoneurons from serial histological images

Authors:
Nicolas Guizard;Pierrick Coupe;Nicolas Stifani;Stefano Stifani;D. Louis Collins
Affiliations:
McConnell Brain Imaging Centre, Montréal Neurological Institute, McGill University, Montréal, Québec, Canada;McConnell Brain Imaging Centre, Montréal Neurological Institute, McGill University, Montréal, Québec, Canada;Center for Neuronal Survival, Montréal Neurological Institute, McGill University, Montréal, Québec, Canada;Center for Neuronal Survival, Montréal Neurological Institute, McGill University, Montréal, Québec, Canada;McConnell Brain Imaging Centre, Montréal Neurological Institute, McGill University, Montréal, Québec, Canada
Venue:
MIAR'10 Proceedings of the 5th international conference on Medical imaging and augmented reality
Year:
2010

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Abstract

Motoneurons (MNs) are neuronal cells involved in several central nervous system (CNS) diseases. In order to develop new treatments and therapies, there is a need to understand MN organization and differentiation. Although recently developed embryo mouse models have enabled the investigation of the MN specialization process, more robust and reproducible methods are required to evaluate the topology and structure of the neuron bundles. In this article, we propose a new fully automatic approach to identify MN clusters from stained histological slices. We developed a specific workflow including inter-slice intensity normalization and slice registration for 3D volume reconstruction, which enables the segmentation, mapping and 3D visualization of MN bundles. Such tools will facilitate the understanding of MN organization, differentiation and function.