DR合理曝光条件的研究  

DR Reasonable Conditions of Exposure

作　　者：郭良栋[1] 娄从辉 孙进城 黄茹[1] 吴强[1] 高夫威 

机构地区：[1]江苏省邳州市人民医院放射科,221300

出　　处：《现代医用影像学》2010年第5期326-329,共4页Modern Medical Imageology

摘　　要：目的:探讨数字化X线摄影的合理曝光条件,以确保影像质量和降低X线曝光量。材料与方法:利用Philips DR系统对膝关节正位,腰椎正位,颈椎侧位各30例被检者(志愿者)分别以不同的kVp曝光,记录mAs值,分析对比影像质量。结果:适当的高kVp(90—102kVp)摄影,可以降低X线曝光量(mAs)约3—5倍,影像质量无明显差异。结论:DR应以高kVp摄影为宜,对降低被检者的曝光量非常有意义。Purpose：To study digital radiography,the exposure and reasonable conditions to ensure video quality and lower x-ray exposure.Materials and Methods：philips DR to knees out of the system being lumbar vertebra being side of 30 cases were prosecuted（the volunteers） were in different kVp exposure mAs,the value analysis image quality.Results：Appropiate high kVp radiography exposure about three to five time,image quality there is no obvious differences.Conclu-sion：DR radiography and operates as to reduce is the exposure and meaningful.

关 键 词：数字化X线摄影术 合理曝光条件 质量控制 

分 类 号：R814.4[医药卫生—影像医学与核医学]