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目的:探讨64层螺旋CT对诊断肺动脉栓塞的临床应用价值。方法:笔者收集28例临床疑似肺动脉栓塞患者经肘静脉注入造影剂行64层螺旋CT的容积扫描,然后将原始图像传至ADW4.4工作站,并通过最大密度投影(MIP)多平面重建(MPR)及容积再现(VR)等对原始图像进行三维重建。结果:MSCTA能清晰显示肺动脉及各级分支,28例患者中正常6例,肺动脉栓塞22例,阳性率80%栓子主要表现肺动脉主干或分支腔内充盈缺损。结论:64层螺旋CT肺动脉CTA是诊断肺动脉栓塞无创、安全、有效的首选检查方法,对临床具有较高的诊断实用价值,有望成为肺动脉栓塞检查的金标准。
Objective: To explore the clinical value of 64-slice spiral CT in the diagnosis of pulmonary embolism. Methods: The author collected 28 cases of suspected pulmonary embolism patients through the elbow venous injection of contrast agent 64-slice spiral CT volume scan, and then the original image was sent to ADW4.4 workstation, and by maximum density projection (MIP) multiplanar reconstruction (MPR ) And Volume Reproduction (VR) to reconstruct the original image. Results: MSCTA could clearly show the pulmonary arteries and branches at all levels. Of the 28 patients, 6 were normal and 22 were pulmonary embolism. The positive rate of 80% emboli mainly represented the filling of the pulmonary artery trunk or branches. Conclusion: 64-slice spiral CT pulmonary artery CTA is the first choice of noninvasive, safe and effective method for the diagnosis of pulmonary embolism. It has a high clinical diagnostic value and is expected to become the gold standard for pulmonary embolism.