Jun 9, 2017

White matter microstructural changes are related to cognitive dysfunction in essential tremor

Scientific Reports
Julián Benito-LeónJuan Pablo Romero

Abstract

Diffusion tensor imaging (DTI) studies have detected white matter microstructural changes in essential tremor (ET). However, it is still unclear whether these changes are related to cognitive deficits, which have been described in ET patients. DTI-derived fractional anisotropy, mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity measures were compared between 23 ET patients and 23 age-, gender-, and education-matched healthy individuals, using whole-brain tract-based spatial statistics. Correlations of white matter changes with scores obtained from a detailed neuropsychological assessment were subsequently examined. ET patients demonstrated increases in MD in the bilateral posterior corona radiata, bilateral superior longitudinal fasciculus, bilateral fornix (cres)/stria terminalis, genu and splenium of the corpus callosum, bilateral anterior and posterior limbs of internal capsule, bilateral retrolenticular region part of internal capsule, and left posterior thalamic radiation. Except for the genu of the corpus callosum, an increase in AD values was also found in these same tracts. Furthermore, increased MD and AD values in different white matter areas was negatively correlated with performance on language an...Continue Reading

Mentioned in this Paper

Study
Pathogenic Aspects
Fornix of Vagina
Entire Fornix of Vagina
Lymphoma, Non-Hodgkin
Pathogenesis
Posterior Thalamic Radiations
Tract
Brain
Entire Internal Capsule of Brain

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