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320排CT颅脑灌注成像在超急性期脑梗死中的初步应用 被引量:3

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摘要 目的:初步探讨320排动态容积CT对超急性期脑梗死患者的应用价值。方法:对11例超急性期脑梗死患者行320排CT扫描,包括平扫、血管成像(CTA)、全脑灌注成像(CTP)。结果:11例患者头颅CT平扫均未发现相应的责任病灶。11例患者的CTA显示10例患者出现血管异常改变。11例患者CTP均发现与临床症状相对应的灌注异常区,5例出现局部脑血流量(rCBF)下降,3例出现局部脑血容积(rCBV)轻度增加。部分全脑灌注图像显示与临床症状相对应的大脑半球平均通过时间(MTT)、峰值时间(TTP)明显延长,部分CBF、CBV无变化。结论:CTP检查是目前超急性期脑梗死对急性缺血灶发现最早的影像学检查手段。320排容积CT灌注成像可以通过一次对比剂注射获得常规CT扫描、全脑灌注、CTA的数据,可以实现对超急性脑梗死的"一站式"CT检查,可降低辐射剂量。
出处 《现代医学》 2013年第11期850-853,共4页 Modern Medical Journal
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