摘要
目的 探讨螺旋CT增强扫描诊断肺栓塞的临床价值。方法 对20例肺栓塞患者应用螺旋CT连续容积扫描,层厚3～7mm,扫描时间1s,对比剂流速2.5～3.5ml/s,扫描延迟时间15-20秒。结果 肺栓塞的螺旋CT表现:①直接征象:腔内充盈缺损;②间接征象:肺窗“马赛克”征及肺梗死灶。结论 螺旋CT增强扫描是快速、有效、无创伤诊断肺栓塞的首选诊断方法。
Objective To study the efficiency of contrast-enhancedspiral CT in the diagnosis of pulmonary embolism(PE). Methods20 cases of PE were examined with volume scanning of spiralCT.The thickness of the slice ranged from 3 to 7mm.Thepatient was scanned for one second.The contrast agent wasinjected automatically with a flow rate of 2.5～3.5ml/s.15～20sAfter the beginning of contrast injection,CT scanning began.Results The features of CT scanning were as follows:①Directsign:intraluminal filling defects were found.②Secondary signs:There were“mosaic sign”on the lung window and focis of pulmonaryinfarction. Conclusion The scanning of contrast-enhanced spiral CTis a fast,efficient and non-invasice procedure to examine patientswith PE and its findings are valuable for the establishment of thediagnosis.
出处
《中国CT和MRI杂志》
2004年第1期33-35,共3页
Chinese Journal of CT and MRI
