Detection of cortical inflammatory lesions by double inversion recovery magnetic resonance imaging in patients with multiple sclerosis - PubMed (original) (raw)
. 2007 Oct;64(10):1416-22.
doi: 10.1001/archneur.64.10.1416.
Nicola De Stefano, Matteo Atzori, Valentina Bernardi, Irene Mattisi, Luigi Barachino, Aldo Morra, Luciano Rinaldi, Chiara Romualdi, Paola Perini, Leontino Battistin, Paolo Gallo
Affiliations
- PMID: 17923625
- DOI: 10.1001/archneur.64.10.1416
Detection of cortical inflammatory lesions by double inversion recovery magnetic resonance imaging in patients with multiple sclerosis
Massimiliano Calabrese et al. Arch Neurol. 2007 Oct.
Abstract
Background: A significant inflammatory pathologic disorder in the cortex of patients with multiple sclerosis (MS) has been demonstrated by ex vivo studies.
Objective: To determine the frequency, time of appearance, and clinical relevance of intracortical lesions (ICLs) in MS in vivo.
Design: Double inversion recovery sequence study.
Setting: Multiple Sclerosis Centre of the Veneto Region. Patients We enrolled 380 patients (116 with clinically isolated syndrome [CIS], 163 with relapsing-remitting MS [RRMS], and 101 with secondary progressive MS [SPMS]) and 40 age- and sex-matched healthy volunteers between May 1, 2005, and December 31, 2006.
Main outcome measures: We assessed the frequency and number of ICLs and brain parenchyma fraction, white matter T2 lesion volume, and clinical disability.
Results: Although never observed in healthy volunteers, ICLs were detected in 58% of patients (36% of patients with CIS, 64% of patients with RRMS, and 73% of patients with SPMS). The number of ICLs was higher in patients with SPMS than in those with CIS or RRMS (P <.001), and patients with ICLs had a higher Expanded Disability Status Scale score (P = .004), a higher white matter T2 lesion volume (P = .008), a lower brain parenchyma fraction (P = .009), and a higher frequency of IgG oligoclonal bands (IgGOBs) (P <.001) than patients without ICLs. Patients positive for IgGOBs had more ICLs than patients negative for IgGOBs (P = .02). The number of ICLs correlated with the Expanded Disability Status Scale score (r = 0.48, P <.001), white matter T2 lesion volume (r = 0.38, P = .001), and brain parenchyma fraction (r = -0.47, P = .001). A significant association between ICLs and male sex was observed.
Conclusions: Although more frequent in patients with SPMS, ICLs were observed from the early disease stages. The ICLs were more frequently detected in patients with IgGOBs and were associated with a higher clinical disability score and male sex. The ICLs may help to define MS clinical heterogeneity and prognosis in clinical settings.
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