A 5-Year Longitudinal Clinical and Magnetic Resonance Imaging Study in Spinocerebellar Ataxia Type 3.
Machado Joseph disease
cerebellum
effect size
neuroimaging
spinocerebellar ataxia type 3
Journal
Movement disorders : official journal of the Movement Disorder Society
ISSN: 1531-8257
Titre abrégé: Mov Disord
Pays: United States
ID NLM: 8610688
Informations de publication
Date de publication:
09 2020
09 2020
Historique:
received:
20
12
2019
revised:
16
04
2020
accepted:
01
05
2020
pubmed:
10
6
2020
medline:
28
4
2021
entrez:
10
6
2020
Statut:
ppublish
Résumé
The natural history of neurodegeneration in spinocerebellar ataxia type 3/Machado Joseph disease is still unclear. Here, we built a long-term longitudinal clinical and neuroimaging study to address this point. Twenty-three patients with spinocerebellar ataxia type 3/Machado Joseph disease and 22 healthy controls underwent 3T MRI twice 5.0 years apart. T1 and diffusion tensor imaging sequences were obtained. We used T1 multiatlas, diffusion tensor imaging multiatlas, SpineSeg, and CERES-SUIT for cerebral gray and white matter, spinal cord and cerebellar analyses, respectively. Clinical severity was assessed with scale for assessment and rating of ataxia. Analysis of covariance evaluated longitudinal between-group changes. Effect sizes were calculated for each significant result. Progressive volumetric abnormalities were most evident in the cerebellum (Lobule X and Crus II; effect size, 2.0), followed by the basal ganglia (effect size, 0.7). The cerebellar peduncles had the largest white-matter diffusivity changes (effect size, 1.29). Scale for assessment and rating of ataxia-related effect size was 0.82. We failed to identify progressive spinal cord abnormalities. Longitudinal changes in spinocerebellar ataxia type 3/Machado Joseph disease are more evident in the cerebellum and connections, followed by the basal ganglia. © 2020 International Parkinson and Movement Disorder Society.
Sections du résumé
BACKGROUND
The natural history of neurodegeneration in spinocerebellar ataxia type 3/Machado Joseph disease is still unclear. Here, we built a long-term longitudinal clinical and neuroimaging study to address this point.
METHODS
Twenty-three patients with spinocerebellar ataxia type 3/Machado Joseph disease and 22 healthy controls underwent 3T MRI twice 5.0 years apart. T1 and diffusion tensor imaging sequences were obtained. We used T1 multiatlas, diffusion tensor imaging multiatlas, SpineSeg, and CERES-SUIT for cerebral gray and white matter, spinal cord and cerebellar analyses, respectively. Clinical severity was assessed with scale for assessment and rating of ataxia. Analysis of covariance evaluated longitudinal between-group changes. Effect sizes were calculated for each significant result.
RESULTS
Progressive volumetric abnormalities were most evident in the cerebellum (Lobule X and Crus II; effect size, 2.0), followed by the basal ganglia (effect size, 0.7). The cerebellar peduncles had the largest white-matter diffusivity changes (effect size, 1.29). Scale for assessment and rating of ataxia-related effect size was 0.82. We failed to identify progressive spinal cord abnormalities.
CONCLUSIONS
Longitudinal changes in spinocerebellar ataxia type 3/Machado Joseph disease are more evident in the cerebellum and connections, followed by the basal ganglia. © 2020 International Parkinson and Movement Disorder Society.
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1679-1684Informations de copyright
© 2020 International Parkinson and Movement Disorder Society.
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