Authors: Camila F Chevis Cynthia B da Silva Anelyssa D’Abreu Iscia LopesCendes Fernando Cendes Felipe P G Bergo Marcondes C França
Publish Date: 2012/05/05
Volume: 12, Issue: 1, Pages: 43-47
Abstract
Although Friedreich’s ataxia is characterized by spinal cord atrophy it remains to be investigated the possible correlation of such atrophy with clinical disability and genetic parameters Thirtythree patients with Friedreich’s ataxia and 30 healthy controls underwent MRI on a 3 T scanner We used T1weighted 3D images to estimate spinal cord area and eccentricity at C2/C3 level based on a semiautomatic image segmentation protocol We quantified severity of ataxia with the Friedreich ataxia rating scale FARS Mean cord area in Friedreich’s ataxia was smaller than in controls 38 vs 679 mm2 p 0001 In contrast mean cord eccentricity was significantly higher in Friedreich’s ataxia when compared to the controls 082 vs 076 p 0001 There was a significant correlation between cord areas and the FARS scores r = −053 p = 0002 Cord damage in Friedreich’s ataxia results in atrophy combined with flattening Cord area is associated to clinical disability and might be useful as a biomarker in the disease
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