胸部数字化影像软阅读时利于细微结构显示的窗宽窗位的研究

Study on best WW/WL values of chest posterior-anterior digital medical images in soft-copy reading

目的:探讨胸部后前位数字化影像软阅读时的最佳参数,提高胸片软阅读时的诊断精度。方法:随机抽取我院最近10d内成人胸片后前位数字化影像100例,由我院5位资深诊断专家分别对每幅数字影像进行软阅读,记录下他们认为可以最佳显示每幅影像不同部位的WWWL,对获得的所有数据进行统计学分析,找出软阅读时对胸部各细微结构能最佳显示的WWWL。结果:各部位最佳WW/WL值:胸壁软组织2083/4840,肋骨2667/4908,肺纹理2067/4960,肺门1848/5130,心脏与大血管2206/5438,纵膈与膈肌2180/5530,胸椎1471/5801,与心脏膈肌重叠的肋骨1428/5975。结论:胸部后前位数字化影像软阅读时不同的解剖部位需要在特定的WWWL下观察才利于影像的诊断。

Objective To improve the diagnostic accurate rate by studying best values of chest posterior-anterior digital medical images in soft-copy reading. Methods 100 normal adults＇ chest posterior=anterior digital medical images in recent 10 days in our hospital were randomly chosen. Five specialists of our department were invited to see these images by softcopy reading and the best WW/WL values of different parts of the chest they selected were recorded. All the data were analyzed in statistics and the best WW/WL was got. Resluts The best WW/WL values of soft tissues of chest wall were 2 083/ 4 840,ribs 2 667/4 908,lung fiber 2 067/4 960,hilum of lung 1 848/5 130,heart and large vessels 2 206/5 438,mediastinum and diaphragm 2 180/5 530,thoracic vertebrae 1 471/5 801,ribs that covered by heart and diaphragml 428/5 975. C, ondugion Different parts in chest poster -anterior digital medical images need special WW/WL in soft-copy reading for better diagnosis of images.