Linn J
Institute for Diagnostic and Interventional Neuroradiology, University Hospital Carl Gustav Carus, Fetscherstr. 74, 01307, Dresden, Germany.
Clin Neuroradiol. 2015 Oct;25 Suppl 2:167-75. doi: 10.1007/s00062-015-0458-z. Epub 2015 Sep 4.
Cerebral microbleeds (CMBs) are defined as small, rounded, or ovoid, homogeneous hypointense lesions on T2*-weighted gradient-echo and other susceptibility-sensitive magnetic resonance imaging (MRI) sequences. They must be differentiated from other causes of focal hypointensities on these sequences. Although CMBs can be caused by a variety of diseases, they are most frequently associated with different forms of cerebral small vessel diseases. This review summarizes the MRI characteristics of CMBs including methodological considerations, as well as prevalence, differential diagnosis, mimics, and clinical relevance of CMBs.
脑微出血（CMBs）被定义为在T2*加权梯度回波和其他敏感性磁共振成像（MRI）序列上呈小的、圆形或椭圆形、均匀低信号的病变。必须将它们与这些序列上导致局灶性低信号的其他原因区分开来。尽管CMBs可由多种疾病引起，但它们最常与不同形式的脑小血管疾病相关。本综述总结了CMBs的MRI特征，包括方法学考量，以及CMBs的患病率、鉴别诊断、类似病变和临床相关性。
