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The cervical spinal cord in neuromyelitis optica patients: a comparative study with multiple sclerosis using diffusion tensor imaging.

Abstract：

INTRODUCTION:This study aims to evaluate "in vivo" the integrity of the normal-appearing spinal cord in patients with neuromyelitis optica (NMO), using diffusion tensor MR imaging, comparing to controls and patients with multiple sclerosis (MS). MATERIALS AND METHODS:We studied 8 patients with NMO and 17 without any neurologic disorder. Also, 32 MS patients were selected. Fractional anisotropy (FA), axial diffusivity (AD), radial diffusivity (RD) and mean diffusivity (MD) were calculated within regions of interest at C2 and C7 levels in the four columns of the spinal cord. RESULTS:At C2, the FA value was decreased in NMO patients compared to MS and controls in the anterior column. Also in this column, RD value showed increase in NMO compared to MS and to controls. The FA value of the posterior column was decreased in NMO in comparison to controls. At C7, AD value was higher in NMO than in MS in the right column. At the same column, MD values were increased in NMO compared to MS and to controls. CONCLUSIONS:There is extensive NASC damage in NMO patients, including peripheral areas of the cervical spinal cord, affecting the white matter, mainly caused by demyelination. This suggests a new spinal cord lesion pattern in NMO in comparison to MS.

journal_name

Eur J Radiol

journal_title

European journal of radiology

authors

Pessôa FM,Lopes FC,Costa JV,Leon SV,Domingues RC,Gasparetto EL

doi

10.1016/j.ejrad.2011.11.026

subject

Has Abstract

pub_date

2012-10-01 00:00:00

pages

2697-701

issue

10

eissn

0720-048X

issn

1872-7727

pii

S0720-048X(11)00804-7

journal_volume

81

pub_type

杂志文章

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