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目的评估螺旋CT肺动脉造影(SCTPA)在急性肺血栓栓塞症诊断的作用。方法回顾性分析43例急性肺栓塞患者螺旋CT肺动脉造影结果。结果43例患者795支肺动脉分支中254支发生栓塞(32%),直接征象:部分性充盈缺损152处(60%)、完全性阻塞76处(30%)、轨道征8处(3%)、附壁血栓6处(2%),灌注减低并密度不均12处(5%);间接征象:肺动脉扩张13例(30%)、栓塞近端肺小动脉异常增粗6例(14%)、局部肺纹理稀疏、纤细22例(51%)、马赛克征3例(7%)、胸腔积液7例(16%)、肺不张7例(16%)、肺楔形变4例(9%)、磨玻璃影6例(14%)。结论SCTPA是诊断急性肺血栓栓塞症准确、简便、无创伤的有效方法。
Objective To evaluate the role of spiral CT pulmonary angiography (SCTPA) in the diagnosis of acute pulmonary thromboembolism. Methods The results of spiral CT pulmonary angiography in 43 patients with acute pulmonary embolism were analyzed retrospectively. Results There were 254 pulmonary embolism (32%) in 795 pulmonary arterial branches in 43 patients. The direct signs were partial filling filling in 152 (60%), complete occlusion in 76 (30%), orbital signage in 8 (2%), reduced perfusion and density unevenness at 12 sites (5%); Indirect signs: pulmonary artery dilation in 13 cases (30%), embolization of the proximal pulmonary artery abnormal thickening in 6 cases (14% ), Local sparse lungs, slender 22 cases (51%), mosaic symptoms in 3 cases (7%), pleural effusion in 7 cases (16%), atelectasis in 7 cases (16%), pulmonary wedge in 4 cases 9%), ground glass in 6 cases (14%). Conclusion SCTPA is an effective, simple and noninvasive method for the diagnosis of acute pulmonary thromboembolism.