双相HRCT对慢性阻塞性肺疾病诊断价值的探讨  

Application of double phase HRCT scanning in the diagnosis of COPD

作　　者：齐敏[1] 黄明刚[1] 雷小燕[1] 张小玲[1] 薛孝荣 邹贵平 

机构地区：[1]陕西省人民医院CT室,陕西西安710068 [2]陕西省旬阳县中医院 [3]陕西省平利县医院

出　　处：《实用医学影像杂志》2005年第2期72-74,共3页Journal of Practical Medical Imaging

摘　　要：目的探讨以肺气肿为主的慢性阻塞性肺疾病(COPD)的双相CT扫描特点。方法对28例COPD组患者及20例正常对照组志愿者分别于深吸气末、深呼气末在三个选定层面对其行高分辨率CT(HRCT)扫描,并于一周内行肺功能检查。结果COPD组肺横截面面积缩小率(AD)、深吸气末、深呼气末肺平均密度(MLD)及差值(VD)较正常组均有明显降低;正常组及COPD组AD与VD均密切相关。结论双相HRCT扫描对以肺气肿为主的COPD的诊断、定量、定位有着重大价值。Objective To investigate the characteristic appearances of chron ic obstructive pulmonary disease(COPD)which mostly presented as pulmonary emphysem a in double phase HRCT scans. Methods Twent y eight patients with COPD and twen ty healthy controls without pulmonary emphysema underwent HRCT scans on the thre e selected sections at the end of deep inspiration and the end of deep expiratio n,simultaneously,the both groups underwent the examinations of pulmonary functio n within one week.Results Compared with control group,the area decrease ratio(AD ) of pulmonary cross section and the mean lung density(MLD) at the end of deep i nspiration/expiration and the inspiration expiration value difference(VD) decli ned significantly in COPD group.There was signficant correlation between AD of p ulmonary cross section and increase of VD in the both groups.Conclusions Double phase HRCT scan has important value in the definite diagnosis,quantitative eval uation and accurate location of COPD which mostly present as pulmonary emphysema .

关 键 词：肺疾病 阻塞性 肺气肿 高分辨率CT 

分 类 号：R816.4[医药卫生—放射医学]