煤工尘肺的CT定量研究  

CT quantitative study of coal miner's pneumoconiosis

作　　者：刘培成[1] 张盾[1] 吴纯[1] 苏汉新[1] 陈静波 蔡桂萍[1] 艾雪儒[1] 阿瓦古丽 

机构地区：[1]新疆煤矿总医院医学影像科,乌鲁木齐830091 [2]乌鲁木齐矿务局职业病研究所

出　　处：《中华劳动卫生职业病杂志》2002年第2期113-115,共3页Chinese Journal of Industrial Hygiene and Occupational Diseases

摘　　要：目的　探讨CT定量对煤工尘肺的诊断价值。方法　对 87例不同期别的煤工尘肺患者和正常对照组 (17例 )分别在主动脉弓顶、隆突、气管分叉下 3cm平面进行HRCT扫描 ,对其图像用CT密度直方图的特定区域 - 10 2 4～ 0HU进行测试 ,计算出具有不同CT值的象素所占的百分数 ,并统计其特定范围内密度值的比率。结果　正常对照组CT密度值在 - 983～ - 778HU范围内为 87.31%,Ⅰ、Ⅱ、Ⅲ期煤工尘肺CT密度值在此范围内分别为 80 .5 1%、75 .2 7%、72 .99%。各组间差异均有显著意义 (P <0 .0 1)。结论　CT定量直方图信息可观测到煤工尘肺纤维化及其程度 ,结果客观、可靠 ,具有较高的诊断价值。Objective To study the value of CT quantitativeness in the diagnosis of coal miner's pneumoconiosis. Methods 104 cases were examined by HRCT scan at top of aortic arc,carina of trachea,3 cm below the bifurcation of bronchi,among them there were 87 patients with different stages of coal miner's pneumoconiosis,17 cases of normal males as the control group.All images were determined by CT density histogram at specific region(-1 024～0 HU).Calculated the percentage of each pixel included a varying number of CT value,and the ratio of density values in the specific region. Results The ratio of density values in the region of -983～-778 HU was 87.31% in normal control group,and 80.51%,75.27% and 72.99% respectively in the Ⅰ,Ⅱ,Ⅲ stages of coal miner's pneumoconiosis.There were statistically significant differences among the groups(P<0.01). Conclusion CT quantitative histogram information was able to observe the fibrosis and its degree of coal miner's pneumoconiosis.It has a good diagnostic value for its reliablity and objectiveness.

关 键 词：煤工 尘肺 X线计算机体层摄影术 定量分析 密度直方图 

分 类 号：R135.2[医药卫生—劳动卫生]