Investigation of outer cortical magnetisation transfer ratio abnormalities in multiple sclerosis clinical subgroups.

Rebecca S Samson, Manuel J Cardoso, Nils Muhlert, Varun Sethi, Claudia Am Wheeler-Kingshott, Maria Ron, Sebastian Ourselin, David H Miller, Declan T Chard

Research output: Contribution to journalArticlepeer-review

Abstract

BACKGROUND: Pathological abnormalities including demyelination and neuronal loss are reported in the outer cortex in multiple sclerosis (MS). OBJECTIVE: We investigated for in vivo evidence of outer cortical abnormalities by measuring the magnetisation transfer ratio (MTR) in MS patients of different subgroups. METHODS: Forty-four relapsing-remitting (RR) (mean age 41.9 years, median Expanded Disability Status Scale (EDSS) 2.0), 25 secondary progressive (SP) (54.1 years, EDSS 6.5) and 19 primary progressive (PP) (53.1 years, EDSS 6.0) MS patients and 35 healthy control subjects (mean age 39.2 years) were studied. Three-dimensional (3D) 1×1×1mm(3) T1-weighted images and MTR data were acquired. The cortex was segmented, then subdivided into outer and inner bands, and MTR values were calculated for each band. RESULTS: In a pairwise analysis, mean outer cortical MTR was lower than mean inner cortical MTR in all MS groups and controls (p
Original languageEnglish
JournalMultiple sclerosis (Houndmills, Basingstoke, England)
Volume20
Issue number10
DOIs
Publication statusPublished - Sept 2014

Keywords

  • Multiple sclerosis
  • cortical grey matter
  • magnetization transfer ratio

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