Title
Watershed-based segmentation of the corpus callosum in diffusion MRI
Abstract
The corpus callosum (CC) is one of the most important white matter structures of the brain, interconnecting the two cerebral hemispheres, and is related to several neurodegenerative diseases. Since segmentation is usually the first step for studies in this structure, and manual volumetric segmentation is a very time-consuming task, it is important to have a robust automatic method for CC segmentation. We propose here an approach for fully automatic 3D segmentation of the CC in the magnetic resonance diffusion tensor images. The method uses the watershed transform and is performed on the fractional anisotropy (FA) map weighted by the projection of the principal eigenvector in the left-right direction. The section of the CC in the midsagittal slice is used as seed for the volumetric segmentation. Experiments with real diffusion MRI data showed that the proposed method is able to quickly segment the CC without any user intervention, with great results when compared to manual segmentation. Since it is simple, fast and does not require parameter settings, the proposed method is well suited for clinical applications.
Year
DOI
Venue
2012
10.1117/12.911619
Proceedings of SPIE
Keywords
Field
DocType
corpus callosum,fractional anisotropy,diffusion tensor image,magnetic resonance,segmentation,watershed transform
Computer vision,Diffusion MRI,White matter,Fractional anisotropy,Segmentation,Watershed,Artificial intelligence,Corpus callosum,Physics,Magnetic resonance imaging
Conference
Volume
ISSN
Citations 
8314
0277-786X
1
PageRank 
References 
Authors
0.35
8
5
Name
Order
Citations
PageRank
Pedro Freitas130.73
Leticia Rittner28212.95
Simone Appenzeller3144.99
a t lapa410.69
Roberto de Alencar Lotufo557253.61