摘要
目的：评价不同屏胶组合，在不同电压下的成像技术、照片质量、影像特征性表现、肺野内细微结构显示率，并进行千伏效应分析。方法：３种屏胶组合，３种电压进行成人胸部Ｘ线摄影。运用诊断学及技术学评审观点，经双育法评审，通过统计学处理。结果：５００例胸片肺野内细微结构显示率中，钙屏蓝片１００例普通电压为１５％；１１例准高电压为８０％；１１例高电压为９８％；１００例快速屏蓝片准高电压为９５％；１１例绿屏绿片为１１％。经统计学处理，Ｐ＜０．０１，检验有显著意义。结论：１．中速屏蓝片高电压成人胸部Ｘ线摄影影像质量，明显优于普通电压及准高电压；２．绿屏绿片高电压成像技术将领先于传统屏胶组合，为传统Ｘ线摄影及照片质量开创了一个崭新的技术路线。
Purpose: To evaluate the image-forming Technique under different kilovoltage with different screen-filmcombination. Methods: X-ray films were taken using 3 kinds of screen-film combination and 3 different KV-values. The filmquality, X-ray appearance, details of lung structures were analysed. Results: Of 500 chest filmes, the demonstration rate of finelung pattern was 15% using calcium-screen-blue film combination with conventional KV, 80% with mid-high KV, 98% withhigh KV; 95% using fast-blue film combination with mid-high-KV; 100% with green screen-green film combination. P<0.01.Conclusions: 1. Mid-speed-blue film combination with high KV revealed better chest film quality than with conventional and midhigh KV.2. Green-green-film and high KV combination is superior to conventional screen-film combination.
出处
《放射学实践》
1999年第1期43-45,共3页
Radiologic Practice
关键词
千伏效应
高千伏胸片
影像评价
X线摄影
胸部
Kilovoltage effect High KV chest film Standard of evalvation Green film.
