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作者复习了1992年1月～1997年7月325例原发性肺癌开胸术前的CT扫描,从中选出19例肿瘤闭塞了肺静脉的病例。CT上确定肺静脉闭塞的标准如下:①肺静脉不显示,它的位置直接被生长的肺肿瘤占据。②闭塞的肺静脉远至其进左心房入口处。③与肿瘤相邻的任何充盈缺损但不在左心房腔内。19例均为男性,年龄49～66岁,其中左上肺静脉闭塞9例,右上肺静脉1例,左下肺静脉4例及右下肺静脉5例。10例CT扫描采用静脉团注100-150ml对比剂,以10mm层厚从肺尖扫至肾上腺,扫
The authors reviewed 325 preoperative CT scans of primary lung cancer between January 1992 and July 1997, and selected 19 cases of pulmonary vein occlusion. The criteria for determining pulmonary vein occlusion on CT are as follows: 1 The pulmonary veins are not shown, and its position is directly occupied by the growing lung tumors. 2 The occluded pulmonary veins are as far as their entrance into the left atrium. 3 Any filling defect adjacent to the tumor but not in the left atrium cavity. All 19 cases were male, aged 49-66 years, including 9 cases of left upper pulmonary vein occlusion, 1 case of right upper pulmonary vein, 4 cases of left lower pulmonary vein and 5 cases of right lower pulmonary vein. 10 cases of CT scan using intravenous bolus 100-150ml contrast agent, 10mm layer thickness sweep from the lung tip to the adrenal gland, sweep