TY - JOUR
T1 - Executive function and diffusion in frontal white matter of adults with moyamoya disease
AU - Nakamizo, Akira
AU - Kikkawa, Yuichiro
AU - Akio, Hiwatashi
AU - Matsushima, Toshio
AU - Sasaki, Tomio
PY - 2014/3
Y1 - 2014/3
N2 - Background: Cognitive impairment is a frequent complication of moyamoya disease (MMD) in adults. Chronic hypoperfusion in frontal lobes can lead to subtle brain injury, resulting in cognitive dysfunctions. Apparent diffusion coefficient (ADC) in normal-appearing white matter on conventional magnetic resonance imaging correlates with cerebral hemodynamics in the frontal lobe. Objective: The purpose of this study was to examine the relationship of ADC with executive function in patients with MMD. Methods: Thirty-one patients (25 women and 6 men; mean age, 32.6 ± 10.4 years) were included in this study. Executive function was evaluated by the Frontal Assessment Battery (FAB) at 21.5 ± 7.5 years after disease onset. ADC was measured in the normal-appearing frontal white matter. Results: ADC was statistically related to the occurrence of executive dysfunction in multivariate analysis (P =.0179). Total FAB score and ADC were negatively correlated (r2 =.22; P =.0072; Spearman correlation coefficient, -.41; P =.024). Elevated ADC predicted executive dysfunction (area under the receiver operating characteristic curve,.73; 95% confidence interval,.55-.91; P =.029). Conclusions: The association of ADC with executive function might suggest that ADC is useful in screening for executive dysfunction during follow-up in the outpatient setting.
AB - Background: Cognitive impairment is a frequent complication of moyamoya disease (MMD) in adults. Chronic hypoperfusion in frontal lobes can lead to subtle brain injury, resulting in cognitive dysfunctions. Apparent diffusion coefficient (ADC) in normal-appearing white matter on conventional magnetic resonance imaging correlates with cerebral hemodynamics in the frontal lobe. Objective: The purpose of this study was to examine the relationship of ADC with executive function in patients with MMD. Methods: Thirty-one patients (25 women and 6 men; mean age, 32.6 ± 10.4 years) were included in this study. Executive function was evaluated by the Frontal Assessment Battery (FAB) at 21.5 ± 7.5 years after disease onset. ADC was measured in the normal-appearing frontal white matter. Results: ADC was statistically related to the occurrence of executive dysfunction in multivariate analysis (P =.0179). Total FAB score and ADC were negatively correlated (r2 =.22; P =.0072; Spearman correlation coefficient, -.41; P =.024). Elevated ADC predicted executive dysfunction (area under the receiver operating characteristic curve,.73; 95% confidence interval,.55-.91; P =.029). Conclusions: The association of ADC with executive function might suggest that ADC is useful in screening for executive dysfunction during follow-up in the outpatient setting.
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U2 - 10.1016/j.jstrokecerebrovasdis.2013.03.022
DO - 10.1016/j.jstrokecerebrovasdis.2013.03.022
M3 - Article
C2 - 23608368
AN - SCOPUS:84896327452
SN - 1052-3057
VL - 23
SP - 457
EP - 461
JO - Journal of Stroke and Cerebrovascular Diseases
JF - Journal of Stroke and Cerebrovascular Diseases
IS - 3
ER -