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Abstract #0622

A Voxel-Based Assessment of Cervical Cord Damage in MS Patients

Paola Valsasina1, Maria A. Rocca, Dusan Damjanovic, Sarlota Mesaros2, Mark A. Horsfield3, Tatjana Stosic-Opincal4, Jelena Drulovic2, Giancarlo Comi5, Massimo Filippi1

1Neuroimaging Research Unit, Institute of Experimental Neurology, San Raffaele Scientific Institute and Vita-Salute San Raffaele University, Milan, Italy, Italy; 2Clinic of Neurology, Faculty of Medicine, University of Belgrade, Belgrade, Yugoslavia; 3Medical Physics Group, Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom; 4Clinic of Radiology, Faculty of Medicine, University of Belgrade, Belgrade, Yugoslavia; 5Department of Neurology, San Raffaele Scientific Institute and Vita-Salute San Raffaele University, Milan, Italy, Italy

We applied an active surface method to perform a voxel-based analysis of cervical cord atrophy and lesion location in patients with multiple sclerosis (MS) and different phenotypes. Sagittal dual-echo and MP-RAGE cervical cord scans were acquired from 89 MS patients and 31 healthy controls [HC]. Patients with clinically isolated syndrome showed no cord atrophy, while primary-progressive (PP) MS had diffuse cord atrophy vs. HC. Several clusters of cord atrophy were found in secondary-progressive MS vs. relapsing-remitting MS, benign MS, and PPMS. Cord lesions were more frequent in the posterior cord portion and in the cord segments from C1 to C4.

Keywords

able active allows analyzed anterior apply applying assess assessed assessment atrophy automatic averaging axial benign better binary brain cardiovascular cervical characterization clinic clinical clinically clusters cohort common contribute controls cord correlated correlations create created damage described diffuse disability disease distribution dual especially experimental faculty fifty five forms frequently healthy heterogeneity input institute involved isolated kingdom lateral legend lesion lesions localization localized mainly maria mark marked masks median medical medicine neurology normalized objective occurred outlines output patient patients perpendicularly phenotypes physics portion posterior precise primary probability procedure produced progressive radiology ranging rapidly reformatted regional registered relapsing remaining remitting salute sciences scientific sclerosis secondary segment segments semi separately several smoothed space spatial statistics structural surface syndrome taken tissue unfolded unit variables visible vita volume