摘要
目的 :探讨“时间 -密度曲线”在肺内孤立性结节的诊断价值。方法 :对 82例肺内孤立性结节病灶 ,进行动态和小螺旋靶增强扫描 ,采用层厚 3mm ,螺距 1～ 1 5 ,10 0ml造影剂以 2 5ml/s速度静脉注射。分别于延时后 1min ,2min ,3min ,5min四个时相扫描 ,并测量病灶CT值 ,绘制“时间 -密度曲线”。结果 :不同性质的病灶增强值不同 ,差异有显著性 (P <0 0 5 )。肺癌的增强值 4 0 5± 4 9Hu ,低度恶性肿瘤增强值 34 3± 5 8Hu ,良性肿瘤增强值 11 0± 5 4Hu ,结核瘤增强值 8 2± 2 4Hu ,炎性假瘤增强值 5 4 4± 6 0Hu。结论 :“时间 -密度曲线”分析在肺内孤立性结节的鉴别诊断中有重要的诊断意义 ,在扫描中 ,根据病灶的大小选择不同的扫描方式 。
Objective To explore value of time-density curve in the different diagnosis of solitary pulmonary nodule.Method 82 cases with solitary pulmonary nodule were dynamic scaning and small spiral target enhancement scaning.Slice 3mm,pitch 1～1 5.After injected 100ml contrast material at 2 5ml/s delayed 1min,2min,3min,5min four phase,scaning and measureing density of CT and describing time-density curve.Results There were different enhancement density of CT in different kinds of solitary pulmonary nodule and obviously different each other( P <0 05).enhancement degree of lung cancers was 40 5±4 9Hu,low degree of bad tumor was 34 3±5 8Hu,good tumor was 11 0±5 4Hu,tuberculomas 8 2±2 4Hu,granuloms was 54 4±6 0Hu.Conclusion Analyse of time-density curve had important diagnose significance in the different diagnosis of solitary pulmonary nodule.Choiced different scaning way base on solitary pulmonary nodule's range was improved diagnose base.
出处
《吉林医学》
CAS
2002年第6期336-338,共3页
Jilin Medical Journal
