Variational Segmentation of the White and Gray Matter in the Spinal Cord Using a Shape Prior

Author(s):  
Antal Horváth ◽  
Simon Pezold ◽  
Matthias Weigel ◽  
Katrin Parmar ◽  
Oliver Bieri ◽  
...  
2020 ◽  
Author(s):  
Keyword(s):  

2019 ◽  
Vol 26 (3) ◽  
pp. 294-303 ◽  
Author(s):  
Cassandra E Meyer ◽  
Josephine L Gao ◽  
James Ying-Jie Cheng ◽  
Mandavi R Oberoi ◽  
Hadley Johnsonbaugh ◽  
...  

Background: Gray matter (GM) atrophy in brain is one of the best predictors of long-term disability in multiple sclerosis (MS), and recent findings have revealed that localized GM atrophy is associated with clinical disabilities. GM atrophy associated with each disability mapped to a distinct brain region, revealing a disability-specific atlas (DSA) of GM loss. Objective: To uncover the mechanisms underlying the development of localized GM atrophy. Methods: We used voxel-based morphometry (VBM) to evaluate localized GM atrophy and Clear Lipid-exchanged Acrylamide-hybridized Rigid Imaging-compatible Tissue-hYdrogel (CLARITY) to evaluate specific pathologies in mice with experimental autoimmune encephalomyelitis (EAE). Results: We observed extensive GM atrophy throughout the cerebral cortex, with additional foci in the thalamus and caudoputamen, in mice with EAE compared to normal controls. Next, we generated pathology-specific atlases (PSAs), voxelwise mappings of the correlation between specific pathologies and localized GM atrophy. Interestingly, axonal damage (end-bulbs and ovoids) in the spinal cord strongly correlated with GM atrophy in the sensorimotor cortex of the brain. Conclusion: The combination of VBM with CLARITY in EAE can localize GM atrophy in brain that is associated with a specific pathology in spinal cord, revealing a PSA of GM loss.


1983 ◽  
Vol 220 (3) ◽  
pp. 321-335 ◽  
Author(s):  
Richard L. Nahin ◽  
Anne M. Madsen ◽  
Glenn J. Giesler

2015 ◽  
Vol 72 (8) ◽  
pp. 897 ◽  
Author(s):  
Regina Schlaeger ◽  
Nico Papinutto ◽  
Alyssa H. Zhu ◽  
Iryna V. Lobach ◽  
Carolyn J. Bevan ◽  
...  

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