Analysis of characteristics of cerebral microbleeds in patients with ischemic stroke

ZHAO Dacong; GUO Jiang; SUN Xiaoyu; MA Yijie; CHENG Ai; LU Guanghua

Abstract：Objective To investigate the distribution and classification characteristics of cerebral microbleeds (CMBs) in patients with ischemic stroke by using susceptibility weighted imaging (SWI).Methods 350 patients with ischemic stroke were recruited consecutively and nuderwent MR imaging with SWI Conventionally.We measured anatomical distribution of CMBs using MARS and graded according to its number,then we investigated the characteristics.Results CMBs were detected in 108 of 350 cases (30.86％).The systolic blood pressure of patients with CMBs was significantly higher than that of other patients.CMBs were most prevalent in the deep region (44.44％),followed by lobar (34.26％),infratentorial regions (11.11％) and multiple regions (10.19％).The rank of CMBs in deep region was higher than that in lobar (P =0.008) and the last region was the highest one (P =0.001).The number of CMBs in the cerebral infarction area were significantly lower than those outside the infarction area (P =0.018).CMBs in patients with lacunar infarction were significantly more than those in other ptients.Conclusion The distribution and classification of CMBs in patients with ischemic stroke have some characteristic manifestations on SWI,witch may provide useful information for clinicians to develop preventive measures.