Application of SWI in the analysis of the relationship between cerebral micorbleeds and hypertension

Objective: To analyze the relationship between different types of cerebral microbleeds(CMBs) and hypertension. Methods: The data of cerebral susceptibility weighted imaging in 931 patients were retrospectively analyzed. Two hundred and twenty cases with hypertension and 711 cases without hypertension were identified. All patients were additionally scanned using susceptibility weighted imaging. Results: The differences of the detection rate of type Ⅰ, Ⅱ and Ⅴ CMBs between the hypertension group and non-hypertension group were statistically significant(P<0.05~P<0.01). The differences of the detection rate of type Ⅲ and Ⅳ CMBs between the hypertension group and non-hypertension group were not statistically significant(P>0.05). The differences of the constituent ratios of different types of CMBs between the hypertension group and non-hypertension group were not statistically significant(P>0.05). Conclusions: CMBs is more common in patients with hypertension, type Ⅰ, Ⅱ and Ⅴ CMBs are more common in patients with hypertension, and the differences of the detection rate of type Ⅲ and Ⅳ CMBs between the hypertension group and non-hypertension group is small. TypeⅠCMBs in hypertensive patients is mainly, followed by type Ⅴ, and typeⅠand typeⅡ CMBs are more in non-hypertensive patients.