CR系统在乳腺摄影中的应用分析  

The comment of CR application in mammography

作　　者：李秀红[1] 李娟[1] 刘军[1] 

机构地区：[1]山东省泰安市妇幼保健院放射科,山东泰安271000

出　　处：《中国中西医结合影像学杂志》2006年第5期364-365,共2页Chinese Imaging Journal of Integrated Traditional and Western Medicine

摘　　要：目的:评价CR系统在乳腺摄影中的应用价值。方法:抽取我院CR乳腺照片和传统钼靶X线照片各800张进行分析,统计出甲、乙、丙级片及废片率;统计CR片及传统屏-片乳腺癌的诊断正确率。结果:①照片影像质量:CR照片甲级片率67%,乙级片率26%,丙级片率7%,废片率0.25%。传统屏-片甲级片率36%,乙级片率50%,丙级片率11%,废片率2.5%。②照片诊断正确率:CR照片90%,传统屏-片73%。③摄影条件:CR系统比屏-片系统摄影管电压低4 kV,曝光量低4 mAs。结论:CR摄影影像质量好于传统屏-片摄影,可为临床提供可靠的诊断依据,且减少了病人的X线接受剂量。Objective：To comment the value of CR system in mammography. Methods： Eight hundred CR mammographic images and 800 conventional mammographic images were selected and compared in film grading and the positivity for breast cancer between two methods. Results： 1. The quality of the image： In CR, grade A was 67% ,grade B was 26 % ,grade C was 7 % ,grade D was 0.25%. In conventional X-ray images, grade A was 36% ,grade B was 50% ,grade C was 1.1~, and grade D was 2.5%. 2. The positivity for breast cancer .CR images was 90%, the conventional X-ray was 73%. 3. Comparing with conventional X-ray system, the required voltage of CR system was lower 4KV and the current was lower 4mAs. Conclusion： CR system can provide higher quality image and reduce exposure.

关 键 词：CR系统 乳腺摄影 影像质量 临床应用 

分 类 号：R816.4[医药卫生—放射医学]