Diffusion tensor imaging and brain volumetry in Fabry disease patients

Neuroradiology
Teemu PaavilainenRiitta Parkkola

Abstract

Fabry disease is a rare lysosomal storage disorder leading to cellular accumulation of globotriaosylceramide, especially in blood vessels. It is associated with severe early onset cerebrovascular disease and kidney and heart failure. The purpose of this study was to reveal possible disturbances in white matter integrity in Fabry disease patients using voxelwise diffusion-tensor imaging (DTI) analysis. Twelve Fabry disease patients, along with 13 healthy controls, underwent DTI and structural MRI. Voxel-based analysis of the DTI data was performed to assess possible differences in DTI parameters between Fabry disease patients and healthy controls. A selective region of interest analysis was performed for healthy volunteers and Fabry disease patients having a mild burden of T2-hyperintense lesions. We also measured normalised brain tissue volumes and performed a voxel-based volume analysis for grey matter. Voxel-based analysis of DTI data showed areas of significantly reduced fractional anisotropy and increased mean diffusivity in patients with Fabry disease. Eight patients had a mild burden of white matter lesions on their T2 scans. Region of interest analysis on areas showing reduced fractional anisotropy in voxelwise analysis ...Continue Reading

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