两种根尖片数字化成像系统的临床应用评价  

The evaluation of clinical application of two digital imaging system

作　　者：温奕雄[1] 古向生[1] 郑军华[1] 

机构地区：[1]中山大学附属口腔医院放射科,广州510055

出　　处：《影像诊断与介入放射学》2005年第2期123-124,共2页Diagnostic Imaging & Interventional Radiology

摘　　要：目的探讨根尖片数字化间接成像系统(CR)和直接成像系统(DR)临床应用的优缺点。方法对两种数字化成像系统的曝光剂量、成像时间和图像质量进行比较分析。结果直接成像系统具有曝光剂量小、图像质量佳等饰点,其甲级片率达到91.3%。结论根尖片数字化直接成像系统DR的优势明显,是未来根尖片数字化技术的主要发展方向。Objective To investigate the advantages and disadvantages of Com pu ted radiography(CR) and Digital radiography(DR). Methods The exposure dose, imag ing time and image quality were compared in the two digital imaging system. Resu lts The direct digital imaging system had the advantages of low exposure dose an d good image quality. The first film rate was 91.3%. Conclusion The direct digi tal imaging system has significant advantages and will have better development i n future.

关 键 词：数字化成像系统 根尖片 临床应用评价 曝光剂量 图像质量 数字化技术 比较分析 成像时间 优缺点 甲级片 

分 类 号：R816.98[医药卫生—放射医学]