Spinal Cord Damage In Machado-joseph Disease

dc.creatorFahl C.N.
dc.creatorBranco L.M.T.
dc.creatorBergo F.P.G.
dc.creatorD'Abreu A.
dc.creatorLopes-Cendes I.
dc.creatorFranca M.C.
dc.date2014
dc.date2015-06-25T17:52:31Z
dc.date2015-11-26T14:17:13Z
dc.date2015-06-25T17:52:31Z
dc.date2015-11-26T14:17:13Z
dc.date.accessioned2018-03-28T21:18:17Z
dc.date.available2018-03-28T21:18:17Z
dc.identifier
dc.identifierCerebellum. Springer New York Llc, v. , n. , p. - , 2014.
dc.identifier14734222
dc.identifier10.1007/s12311-014-0619-7
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84910047826&partnerID=40&md5=b28b17d3b4df83eb0b3cee6d6219418f
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/86287
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/86287
dc.identifier2-s2.0-84910047826
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1243275
dc.descriptionMachado-Joseph disease (SCA3) is the most frequent spinocerebellar ataxia worldwide and characterized by remarkable phenotypic heterogeneity. MRI-based studies in SCA3 focused in the cerebellum and connections, but little is known about cord damage in the disease and its clinical relevance. To evaluate the spinal cord damage in SCA3 through quantitative analysis of MRI scans. A group of 48 patients with SCA3 and 48 age and gender-matched healthy controls underwent MRI on a 3T scanner. We used T1-weighted 3D images to estimate the cervical spinal cord area (CA) and eccentricity (CE) at three C2/C3 levels based on a semi-automatic image segmentation protocol. The scale for assessment and rating of ataxia (SARA) was employed to quantify disease severity. The two groups—SCA3 and controls—were significantly different regarding CA (49.5 ± 7.3 vs 67.2 ± 6.3 mm2, p < 0.001) and CE values (0.79 ± 0.06 vs 0.75 ± 0.05, p = 0.005). In addition, CA presented a significant correlation with SARA scores in the patient group (p = 0.010). CE was not associated with SARA scores (p = 0.857). In the multiple variable regression, we found that disease duration was the only variable associated with CA (coefficient = −0.629, p = 0.025). SCA3 is characterized by cervical cord atrophy and antero-posterior flattening. In addition, the spinal cord areas did correlate with disease severity. This suggests that quantitative analyses of the spinal cord MRI might be a useful biomarker in SCA3.
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dc.languageen
dc.publisherSpringer New York LLC
dc.relationCerebellum
dc.rightsfechado
dc.sourceScopus
dc.titleSpinal Cord Damage In Machado-joseph Disease
dc.typeArtículos de revistas


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