无症状性脑梗塞(SCI)通常指有脑卒中史而无神经系统异常的梗塞,但也包含有神经系统异常而无相对应的脑梗塞病变。虽然关于无症状和有症状的争论较多,但是有头痛、头晕等非特异脑部症状,轻度腱反射异常等也属无症状。有TIA和Barre征阳性等属有症状。 SCI的发生率受研究对象和诊断仪器的精确度和影像学上病变的定义的影响。欧美以CT作为研究方 Asymptomatic cerebral infarction (SCI) usually refers to a history of stroke without neurological abnormalities in the infarct, but also includes abnormalities in the nervous system without corresponding cerebral infarction. Although there are more controversies about asymptomatic and symptomatic symptoms, nonspecific brain symptoms such as headache, dizziness, and mild tendon reflexes are also asymptomatic. Positive symptoms such as TIA and Barre sign. The incidence of SCI is influenced by the accuracy of the study subject and the diagnostic instrument and the definition of an imaging lesion. Europe and the United States to CT as a research party