scholarly journals A Serial 10-Year Follow-Up Study of Atrophied Brain Lesion Volume and Disability Progression in Patients with Relapsing-Remitting MS

Author(s):  
R. Zivadinov ◽  
D. Horakova ◽  
N. Bergsland ◽  
J. Hagemeier ◽  
D.P. Ramasamy ◽  
...  
2014 ◽  
Vol 85 (10) ◽  
pp. 1109-1115 ◽  
Author(s):  
Cecilie Jacobsen ◽  
Jesper Hagemeier ◽  
Kjell-Morten Myhr ◽  
Harald Nyland ◽  
Kirsten Lode ◽  
...  

2019 ◽  
Vol 40 (8) ◽  
pp. 1627-1636 ◽  
Author(s):  
Jelena Drulovic ◽  
Jovana Ivanovic ◽  
Sarlota Mesaros ◽  
Vanja Martinovic ◽  
Darija Kisic-Tepavcevic ◽  
...  

Brain ◽  
2020 ◽  
Vol 143 (7) ◽  
pp. 2089-2105 ◽  
Author(s):  
Anne Kerbrat ◽  
Charley Gros ◽  
Atef Badji ◽  
Elise Bannier ◽  
Francesca Galassi ◽  
...  

Abstract Despite important efforts to solve the clinico-radiological paradox, correlation between lesion load and physical disability in patients with multiple sclerosis remains modest. One hypothesis could be that lesion location in corticospinal tracts plays a key role in explaining motor impairment. In this study, we describe the distribution of lesions along the corticospinal tracts from the cortex to the cervical spinal cord in patients with various disease phenotypes and disability status. We also assess the link between lesion load and location within corticospinal tracts, and disability at baseline and 2-year follow-up. We retrospectively included 290 patients (22 clinically isolated syndrome, 198 relapsing remitting, 39 secondary progressive, 31 primary progressive multiple sclerosis) from eight sites. Lesions were segmented on both brain (T2-FLAIR or T2-weighted) and cervical (axial T2- or T2*-weighted) MRI scans. Data were processed using an automated and publicly available pipeline. Brain, brainstem and spinal cord portions of the corticospinal tracts were identified using probabilistic atlases to measure the lesion volume fraction. Lesion frequency maps were produced for each phenotype and disability scores assessed with Expanded Disability Status Scale score and pyramidal functional system score. Results show that lesions were not homogeneously distributed along the corticospinal tracts, with the highest lesion frequency in the corona radiata and between C2 and C4 vertebral levels. The lesion volume fraction in the corticospinal tracts was higher in secondary and primary progressive patients (mean = 3.6 ± 2.7% and 2.9 ± 2.4%), compared to relapsing-remitting patients (1.6 ± 2.1%, both P < 0.0001). Voxel-wise analyses confirmed that lesion frequency was higher in progressive compared to relapsing-remitting patients, with significant bilateral clusters in the spinal cord corticospinal tracts (P < 0.01). The baseline Expanded Disability Status Scale score was associated with lesion volume fraction within the brain (r = 0.31, P < 0.0001), brainstem (r = 0.45, P < 0.0001) and spinal cord (r = 0.57, P < 0.0001) corticospinal tracts. The spinal cord corticospinal tracts lesion volume fraction remained the strongest factor in the multiple linear regression model, independently from cord atrophy. Baseline spinal cord corticospinal tracts lesion volume fraction was also associated with disability progression at 2-year follow-up (P = 0.003). Our results suggest a cumulative effect of lesions within the corticospinal tracts along the brain, brainstem and spinal cord portions to explain physical disability in multiple sclerosis patients, with a predominant impact of intramedullary lesions.


2016 ◽  
Vol 23 (6) ◽  
pp. 848-854 ◽  
Author(s):  
Marco Pitteri ◽  
Chiara Romualdi ◽  
Roberta Magliozzi ◽  
Salvatore Monaco ◽  
Massimiliano Calabrese

Background: Multiple sclerosis (MS) is a chronic immune-mediated disease of the central nervous system (CNS). Although cognitive impairment (CI) affects a large proportion of MS patients, only few data are available about its prognostic value associated with advanced magnetic resonance imaging (MRI) metrics. Objectives: We aimed at investigating the relationship between the early CI and the disease progression over 8-year follow-up in MS patients. Methods: We conducted a retrospective 8-year longitudinal study involving 78 patients with relapsing-remitting MS, who completed neuropsychological examination and structural MRI at the time of diagnosis. Each patient was clinically evaluated every 6 months, and cortical thickness was quantified at baseline and at the end of the follow-up. Patients were classified as having normal cognition and mild or severe CI. Results: The results show that CI at the time of diagnosis is a good predictor of conversion to definite MS ( p < 0.001), disability progression ( p < 0.001), as well as of transition to secondary progressive phase ( p < 0.001) and of cortical thinning ( p < 0.001). Conclusion: We confirmed and extended the evidence that early CI might be helpful in the identification of MS patients at high risk of disability progression and poor clinical outcome and should be considered as a marker of most aggressive pathology.


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