DR和CR胸部摄影临床应用对比研究

Clinical Application Comparison of DR and CR Chest Photograph

目的：探讨DR和cR胸部摄影临床应用的价值。方法：随机抽取DR和cR胸部摄影各120例患者的胸片资料进行比较。结果：DR胸部摄影，曝光结束后15s获得影像，摄影速度约为60人／h，甲级片115例（95．83％），乙级片5例（4．17％），没有丙级片、废片。CR摄影，需要更换IP板，每块IP板扫描时间1．5min，摄影速度约为35人／b，甲级片113例（94．17％），乙级片4例（3．33％）、丙级片2例（1．67％）、废片1例（0．83％）。经统计学分析DR组甲片率与CR组比较无明显差异，无统计学意义（χ2=0．35，P〉0．05）。结论：CR与DR的共同点是将x线影像信息转化为数字影像信息，可进行各种图像后处理，为影像诊断中的细节观察、前后对比和定量分析提供了技术支持。

Objective： To investigate the DR and CR chest radiography clinical value.Methods：Random sample the chest slice data that DR and CR chest photograph 120 for each sufferer to carry on a comparison.Results： The DR chest photographs, the 15 ses acquires image and photographs the speed as about 60 people after exposing to endlh, the first grade slice is 115（95.83%）, the second grade slice is 5（4.17%）, there is no C grades slice and discards a slice.Tbe CR photographs and needs to replace IP plank, time of scanning of each IP plank 1.5 mins, photograph the speed as about 35 peoplelh, the first grade slice is 113（94.17%）, the second grade slice is 4（3.33%）, C grade slice 2（1.67%）, discard slice l（0.83%）.Through statistics learn to analyze a rate and CR set to relatively have no obvious difference, have no statistics to learn meaning.（χ2=0.35, P〉0.05）.Conelusion： CR and DR of converting the X line image information as number image is a little bit common information, handle aRer cann/ng carry on various picture, for the detail observation in the image diagnosis, front and back contrast and quantitative analysis provided technique support.