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脑微出血(CMBs)是一种亚临床的终末期微小血管病变导致的含铁血黄素沉积。CMBs多无临床症状,常规MRI不能发现。在T2加权梯度回波(GRE)序列表现为均匀一致,直径2～5mm的卵圆形信号减低区,周围无水肿。随着影像学技术的发展逐渐被人们所认识,尽管其危险因素、发病机制、临床意义
Cerebral microbleeds (CMBs) are hemosiderin deposits that result from subclinical end-stage microvascular lesions. CMBs more clinical symptoms, conventional MRI can not be found. The T2-weighted gradient echo (GRE) sequence showed a uniform oval signal reduction zone with a diameter of 2 to 5 mm with no surrounding edema. With the development of imaging technology has gradually been recognized, despite its risk factors, pathogenesis, clinical significance