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RFC1‐Related Disorder: In Vivo Evaluation of Spinal Cord Damage
Movement disorders, 2022-10, Vol.37 (10), p.2122-2128
Rezende, Thiago J.R.
Schmitt, Gabriel S.
Lima, Fabricio D.
Brito, Mariana Rabelo
Matos, Paula Camila A.A.P.
Bonadia, Luciana Cardoso
Martinez, Alberto R.M.
Cendes, Fernando
Pedroso, José Luiz
Barsottini, Orlando G.P.
Marques, Wilson
França, Marcondes Cavalcante
2022
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Rezende, Thiago J.R.
Schmitt, Gabriel S.
Lima, Fabricio D.
Brito, Mariana Rabelo
Matos, Paula Camila A.A.P.
Bonadia, Luciana Cardoso
Martinez, Alberto R.M.
Cendes, Fernando
Pedroso, José Luiz
Barsottini, Orlando G.P.
Marques, Wilson
França, Marcondes Cavalcante
Titel
RFC1‐Related Disorder: In Vivo Evaluation of Spinal Cord Damage
Ist Teil von
Movement disorders, 2022-10, Vol.37 (10), p.2122-2128
Ort / Verlag
Hoboken, USA: John Wiley & Sons, Inc
Erscheinungsjahr
2022
Quelle
Wiley Online Library All Journals
Beschreibungen/Notizen
Background RFC1‐related disorder is a novel heredodegenerative condition with a broad phenotypic spectrum. Its neuropathological bases are not yet fully understood, particularly regarding the pattern, extent, and clinical relevance of spinal cord (SC) damage. Objectives The objectives were to determine the SC structural signature in RFC1‐related disorder in vivo and to identify potential clinical correlates for these imaging abnormalities. Methods We enrolled 17 subjects with biallelic RFC1 (AAGGG)n expansions and 11 age‐ and sex‐matched healthy controls that underwent multimodal magnetic resonance imaging SC acquisitions in a 3T Philips Achieva scanner. Both global morphometry and tract‐specific analyses were then performed across all cervical levels. Between‐group comparisons were assessed using nonparametric tests. Results In the patient group, mean age and disease duration were 62.9 ± 9.3 and 9.3 ± 4.0, respectively. Compared to controls, patients had remarkable SC cross‐sectional area reduction along all cervical levels but anteroposterior flattening only in the lower cervical levels. There was also prominent SC gray matter atrophy. Diffusivity abnormalities were identified in the dorsal columns but not in the lateral corticospinal tracts. Disease severity did not correlate with these imaging parameters. Conclusion SC damage is a hallmark of RFC1‐related disorder and characterized by gray as well as white matter involvement. In particular, dorsal columns are severely and diffusely affected. The clinical correlates of these imaging abnormalities still deserve additional investigations. © 2022 International Parkinson and Movement Disorder Society.
Sprache
Englisch
Identifikatoren
ISSN: 0885-3185
eISSN: 1531-8257
DOI: 10.1002/mds.29169
Titel-ID: cdi_proquest_miscellaneous_2694421033
Format
–
Schlagworte
Atrophy
,
CANVAS
,
diffusion tensor imaging
,
dorsal column
,
Dorsal columns
,
Magnetic resonance imaging
,
Morphometry
,
Movement disorders
,
Patients
,
Pyramidal tracts
,
RFC1
,
Spinal cord
,
Substantia alba
,
Substantia grisea
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