Document Detail


Magnetic resonance disease severity scale (MRDSS) for patients with multiple sclerosis: A longitudinal study.
MedLine Citation:
PMID:  22209496     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: We previously described a composite MRI scale combining T1-lesions, T2-lesions and whole brain atrophy in multiple sclerosis (MS): the magnetic resonance disease severity scale (MRDSS). OBJECTIVE: Test strength of the MRDSS vs. individual MRI measures for sensitivity to longitudinal change. METHODS: We studied 84 MS patients over a 3.2±0.3year follow-up. Baseline and follow-up T2-lesion volume (T2LV), T1-hypointense lesion volume (T1LV), and brain parenchymal fraction (BPF) were measured. MRDSS was the combination of standardized T2LV, T1/T2 ratio and BPF. RESULTS: Patients had higher MRDSS at follow-up vs. baseline (p<0.001). BPF decreased (p<0.001), T1/T2 increased (p<0.001), and T2LV was unchanged (p>0.5). Change in MRDSS was larger than the change in MRI subcomponents. While MRDSS showed significant change in relapsing-remitting (RR) (p<0.001) and secondary progressive (SP) phenotypes (p<0.05), BPF and T1/T2 ratio changed only in RRMS (p<0.001). Longitudinal change in MRDSS was significantly different between RRMS and SPMS (p=0.0027); however, change in the individual MRI components did not differ. Evaluation with respect to predicting on-study clinical worsening as measured by EDSS revealed a significant association only for T2LV (p=0.038). CONCLUSION: Results suggest improved sensitivity of MRDSS to longitudinal change vs. individual MRI measures. MRDSS has particularly high sensitivity in RRMS.
Authors:
Jennifer Moodie; Brian C Healy; Guy J Buckle; Susan A Gauthier; Bonnie I Glanz; Ashish Arora; Antonia Ceccarelli; Shahamat Tauhid; Xue-Mei Han; Arun Venkataraman; Tanuja Chitnis; Samia J Khoury; Charles R G Guttmann; Howard L Weiner; Mohit Neema; Rohit Bakshi
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-28
Journal Detail:
Title:  Journal of the neurological sciences     Volume:  -     ISSN:  1878-5883     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2012-1-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375403     Medline TA:  J Neurol Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier B.V. All rights reserved.
Affiliation:
Department of Neurology, University of Massachusetts, Boston, MA, USA.
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