Correlating brain atrophy with cognitive dysfunction, mood disturbances, and personality disorder in multiple sclerosis

Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging
R H B BenedictR Bakshi

Abstract

Neuropsychological impairment is a common feature of multiple sclerosis. Affected patients often have deficits in information-processing speed and memory and exhibit psychopathological states such as depression. A minority of patients have rarer affect/mood disorders such as euphoria sclerotica and pathological laughter/crying. Neuropsychological impairment is a major predictor of low quality of life, unemployment, and caregiver distress. Studies evaluating correlations between neuropsychological impairment and findings on magnetic resonance imaging show that neuropsychological dysfunction is associated with lesion burden and diffuse disease in normal-appearing brain tissue. However, measures of tissue atrophy including whole-brain and central atrophy are especially well correlated with and predictive of cognitive impairment. Moreover, recent studies have shown that conventional measures of brain atrophy explain more variance in neuropsychological dysfunction than do measures of lesion burden. In particular, neuropsychological outcomes correspond highly with linear measures of subcortical atrophy such as ventricle enlargement. Within the domain of emotional dysfunction, both lesion burden and atrophy are related to major depres...Continue Reading

Citations

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