目的: 探讨原发性肺癌在64 层CT 灌注增强中显示的特异性血管征象。方法: 对57 例病人( 中央型
肺癌38 例、周围型肺癌9 例，炎性结节10 例) 的64 层CT 灌注增强在肺动脉期、主动脉期以先后顺序显示的血
管征象进行特异性，敏感性分析。结果: 受损肺动脉和瘤血管影见于肺癌; 病灶及周围走形规则、均匀扩张血管
影见于炎性结节。肺动脉期病灶相关残根或截断状或侵蚀狭窄等受损肺动脉影，其特异性分别为中央型肺癌
84%，周围型肺癌14%( P＜0． 05) ;敏感性分别为中央型肺癌97%，周围型肺癌67% ( P＞0． 05) 。主动脉期病灶
内蚓状、斑点状、网状及血湖状等瘤血管影，其特异性分别为中央型肺癌82%，周围型肺癌18% ( P＜0． 05) ; 敏感
性分别为中央型肺癌95%，周围型肺癌89%( P＞0． 05) 。结论: 64 层CT 灌注增强能顺序完整显示诊断肺癌的特
异血管征象。

Objective: To assess the specific vascular signs of primary lung cancer in 64－slice CT
perfusion enhanced． Methods: the specific vascular signs of 57 patients( central lung cancer in 38 cases，
9cases of peripheral lung cancer， inflammatory nodules 10 cases) with 64－slice CT perfusion scan
analysised sequencelly in accordance to different enhance scan stage． Results: narrow erosion and truncate
vessles in pulmonary artery phase and tumor vascular are specific vascular signs of lung cancer，uniform
dilation of blood vessels in the pulmonary and aorta phase found in inflammatory nodules． narrow
erosion and truncate vessles in pulmonary artery phase are specific vascular signs of lung cancer， its
specificity in central lung cancer 84%， 14%in peripheral lung cancer． Sensitivity of central lung cancer
( P＜0． 05) ，97% and 67% of peripheral lung cancer( P ＞0． 05) ． the vermis，punctate，mesh and the
lakely blood tumor vascular in aortic periodits specificity in central lung cancer 82% and 18% in peripheral
lung cancer ( P ＜0． 05) ． Sensitivity of central lung cancer，95% and 89% of peripheral lung
cancer． ( P＜0． 05) ． Conclusion: 64－slice CT perfusion enhanced can display sequence and completely
the specific vascular signs of primary lung．

R692． 3

 收稿日期: 2013－03－10; 修回日期: 2013－05－06
基金项目: 内蒙古自治区自然科学基金项目( 20080404MS1119) ; 内蒙古自治区科技厅攻关项目( 20120403)
作者简介: 薄晓庆( 1982－) ，女，内蒙古呼和浩特第一医院影像科住院医师，医学硕士。
通讯作者: 苏冠琴，主任医师，医学硕士，硕士研究生导师，E－mail: suguanqin@ 126． com 内蒙古自治区人民医院影像
科， 010017