约70%脑卒中患者由脑缺血引起并有局部灌注减少。以往需数小时才能确定为脑卒中,而开始有效治疗的时间窗可能在发病3小时内。现在有一种新的ＣＴ技术,即一种专用软件,称为“灌注ＣＴ”,可在15分钟内评估卒中的脑损害。此软件的彩色图像比灰阶图更易确定损害的位置,从而达到早期 About 70% of stroke patients are caused by cerebral ischemia and have a reduced local perfusion. In the past it took hours to identify a stroke, and the window of time for effective treatment could be within 3 hours of onset. There is now a new CT technique, a proprietary software called “perfusion CT” that can assess stroke brain damage in 15 minutes. The color image of this software makes it easier to identify the location of the damage than the grayscale to achieve early