【摘要】目的:探讨多层螺旋CT肺血管造影(MSCTPA)诊断肺小动脉栓塞的价值,提高对肺栓塞CTPA表现的认识。材料和方法:对13例临床疑为PE的患者行螺旋CT血管造影,其中3例在溶栓治疗后进行复查。结果:13例患者,均位于肺动脉的段及亚段以下水平,亚段肺动脉受累160支。MSCTA显示肺小动脉栓塞的征象为肺动脉内的不规则充盈缺损及完全阻塞,其中栓塞表现为中心型充盈缺损48例、偏心性充盈缺损24例、附壁型充盈缺损21例、完全闭塞型67例。结论:MSCTPA对肺小动脉栓塞可以作出可靠的诊断,对临床正确诊断及治疗后随防有重要意义。

    【关键词】 肺栓塞;血管造影术;体层摄影术;X线计算机

    Cinical Value of Spiral CT Angiography in the Diagnosis of small Pulmonary Embolism

    YUAN Hanqiang,CUI Bing,DENG Biyi,HU Qiugen,CEN Yujian

    Department of Radiology,The First People’s Hospital of Shunde,Guangdong 528300,P.R.China

    【Abstract】Objective: To investigate the value of multi-slice spiral CTPA in diagnosing small pulmonary embolism. Materials and Methods: 13 Patients of clinically suspected PE underwent spiral CT angiography.6 the patients were reexamined after thrombolysis. Results: 160 Pulmonary arteries and their vessels in 13 cases were involved in PE,all of which located in segment and sub-segment of pulmonary arteries. The PE signs of MSCT angiography were irregular filling defect and completed occlusion in the pulmonary artery,including central filling defect(n=48),eccentric filling defect(n=24),mural thrombi(n=21)and completed occlusions(n=67). Conclusions: With high reliability,MSCTPA is an ideal method in diagnosing small pulmonary embolism. It is valuable for clinical diagnosis and assessment of prognosis. ......