PT - JOURNAL ARTICLE AU - Bruening, Roland AU - Dichgans, Martin AU - Berchtenbreiter, Christian AU - Yousry, Tarek AU - Seelos, Klaus C. AU - Wu, Ren H. AU - Mayer, Michael AU - Brix, Gunnar AU - Reiser, Maximilian TI - Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy: Decrease in Regional Cerebral Blood Volume in Hyperintense Subcortical Lesions Inversely Correlates with Disability and Cognitive Performance DP - 2001 Aug 01 TA - American Journal of Neuroradiology PG - 1268--1274 VI - 22 IP - 7 4099 - http://www.ajnr.org/content/22/7/1268.short 4100 - http://www.ajnr.org/content/22/7/1268.full SO - Am. J. Neuroradiol.2001 Aug 01; 22 AB - BACKGROUND AND PURPOSE: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an arteriopathic syndrome related to a genetic defect on chromosome 19. Characteristic changes in CADASIL can be observed onT2-weighted MR images in the subcortical white matter. The purpose of this study was to measure changes of regional cerebral blood volume (rCBV) with dynamic contrast-enhanced MR imaging and to correlate the changes to disability and cognitive performance.METHODS: We obtained rCBV measurements of 24 individuals with proven CADASIL on a 1.5-T MR imaging unit. A susceptibility-weighted MR imaging sequence was used for bolus tracking. Principles of the indicator dilution theory were applied to estimate values of absolute rCBV (mL/100 g). Disability was determined by using the Rankin scale, and overall cognitive performance was assessed by using the Mini-Mental State Examination.RESULTS: The mean rCBV in the subcortical white matter that was hyperintense on the T2-weighted images (2.7 ± 0.8 mL/100 g) was significantly lower than the rCBV in the white matter that appeared normal on the T2-weighted images (4.4 ± 1.3 mL/100 g) (P < .05). The mean rCBV in the gray matter was within the normal range (8.3 ± 1.7 mL/100 g). Both cognitive impairment and disability negatively correlated with rCBV in the subcortical white matter that was hyperintense (P < .05) but not with rCBV in the normal appearing white matter. rCBV did not correlate with age.CONCLUSION: rCBV measured in the hyperintense subcortical white matter in individuals with CADASIL was decreased and inversely correlated with disability and cognitive impairment.