【摘要】 目的探讨手动与自动曝光控制对婴幼儿胸部数字化X线摄影图像质量的影响。方法将154例接受DR胸片摄影的婴幼儿按照曝光控制分为手动曝光组和自动曝光组,比较两种曝光控制模式对图片质量的影响。结果数字化X线摄影手动曝光的DR图像废片为0例,与自动曝光相比较明显减少,且差异具有统计学意义(X~2=4.34,P<0.05)。这表明与自动曝光相比,婴幼儿DR胸片手动曝光可以明显减少废片率,图像质量更佳。结论手动曝光控制可以获得更佳的婴幼儿胸部数字化X线摄影图像质量,更适用于婴幼儿胸部DR摄影,重照率,这样从而可以降低婴幼儿所接受的辐射剂量。更多还原

【Abstract】 Objective To explore the effect of manual and automatic exposure control on the quality of chest digital radiography in infants and young children.Methods 154 infants received DR chest radiography were divided into manual exposure group and automatic exposure group according to exposure control from January 2015 to December 2015.The effect of the two exposure control modes on picture quality was compared.Results The waste photography in manual exposure was 0 case.It was significantly reduced by comparing with the automatic exposure,and the difference was statistically significant (X~2= 4.34,P <0.05).This showed that DR chest X-ray manual exposure could significantly reduce the scrap rate by comparing with automatic exposure,and image quality was better.Conclusion Manual exposure control could get a better image quality of chest digital radiography in infants and young children,which was more suitable for infants.This will reduce the dose of radiation received by infants and young children.更多还原