在脑梗塞发病 6小时之内的所谓超急性期 ,曾经认为用 CT几乎不能检出异常。但是 ,随着 CT分辨能力的提高 ,已经可以较高频率地捕捉到异常。一、脑梗塞发病后超急性期 CT所见1 .豆状核阴影的模糊化　在脑栓塞时 ,大脑中动脉常常由于栓子而引起闭塞。由于豆状核纹状体动脉区的缺 In the so-called hyperacute phase within 6 hours of onset of cerebral infarction, it was thought that almost no abnormalities could be detected with CT. However, with the improvement of CT resolution, abnormalities can already be captured at a higher frequency. First, the onset of acute cerebral infarction seen in CT 1. Fuzzy shadow of the nucleus in the cerebral embolism, the middle cerebral artery often caused by emboli and occlusion. Due to the absence of the striatum of the striatum