Abstract: Objective To investigate the relationship between the leukoaraiosis(LA) and atheromatous.Methods 86 LA patients(as the observation group) and 84 non-leukoaraiosis patients(as the control group) were given examinations of carotid color doppler ultrasonography and magnetic resonance angiography(MRA).The imaging data of two groups were analyzed contrastively.Results In the observation group,the detectable rate of carotid atheromatous plaques was 86.05%,the rates of medium and serious stenosis were 52.70% and 24.32%;the detectable rate of intracalvarium artery atheromatous plaques were 75.58%,the rates of medium and serious stenosis were 46.15% and 29.23%.By analysis of statistics,there was a significant difference between the two groups(P<0.01).Conclusion Carotid and intracalvarium artery atheromatous plaques are closely correlation with LA,and may signify the genesis,development and severity of LA.

Key words: leukoaraiosis, carotid atheromatous plaque, imageology