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学科主题: 放射科学
题名:
管电压对体模及接尘者数字化X线胸片图像的影响
其他题名: Effect of tube voltage on digital chest radiograph for phantom and occupational exposed workers
作者: 王晓华; 刘东声; 宣晓; 康涵; 段江晖; 袁慧书
关键词: 管电压 ; 体模,显象术 ; 放射摄影术,数字 ; Tube voltage ; Phantoms,imaging ; Radiolography,digital
刊名: 中华劳动卫生职业病杂志
发表日期: 2013
DOI: 10.3760/cma.j.issn.1001-9391.2013.09.007
卷: 31, 期:9, 页:671-674
收录类别: 中国科技核心期刊 ; 中文核心期刊 ; CSCD
文章类型: Journal Article
摘要: 目的 探讨不同管电压下对比度细节体模(CDRAD2.0)及职业性接尘者数字化X线胸片(DR)的图像质量.方法 对CDRAD2.0体模进行高仟伏及不同管电压的DR成像,由3位阅片者对其图像进行分析,计算并比较影像质量因子(IQF);同时选择136例粉尘作业人员,拍摄高仟伏X线胸片和不同管电压下的DR片,参照高仟伏胸片分别对DR片的10个解剖部位进行评分,比较DR与高仟伏图像间的差异.结果 在CDRAD2.0体模中,3位阅片者DR图像的IQF值均在120 kV条件下达到最小,平均IQF值为22.25.经随机效应模型的方差分析,不同管电压下的DR图像的平均IQF值的差异有统计学意义(F=13.775,P<0.01).120 kV的DR图像与高仟伏图像IQF均值的差异无统计学意义(t=-0.58,P=0.979).在接尘者中,120 kV投照条件下的DR图像对解剖情况的显示最接近高仟伏模拟图像,均值与0(基本等同于高仟伏片)的差异无统计学意义(P>0.05).结论 在CDRAD2.0体模或接尘者中,120kV管电压下的DR图像质量基本等同于高仟伏片. Objective To explore the image quality of different tube voltage on digital chest radiograph for contrast detail phantom (CDRAD2.0) and occupational exposed workers.Methods The CDRAD2.0 phantom DR images of high KV and different tube voltages were analyzed by 3 readers,image quality figure (IQF) were calculated and compared ;at the same time 136 exposed workers were examined with high-kV and DR chest radiograph of different tube voltages.Contrast to high-KV images,10 anatomic sites were scored.The image differences were compared between DR and high-kV.Results On CDRAD2.0 phantom,the IQF value of DR images in 3 readers were minimum in the condition of 120 kV,average value was 22.25.The analysis of variance in model with random effects,the mean IQF value of different tube voltage DR image had a significant difference (F=13.775,P<0.01) ;By Dunnett t-tests analysis,the mean IQF value of DR image in 120 kV and high kilovoltage had no difference (t=-0.58,P=0.979); On clinical cases,the DR image of 120 kV showed the closest anatomy to the high KV,the mean had no significant difference with 0 (P>0.05) with single sample t test.Conclusion On the CDRAD2.0 phantom or clinical exposed workers,the DR image quality of 120 kV tube voltage equals to high-KV basically.
语种: 中文
原文出处: 查看原文
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内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/69353
Appears in Collections:北京大学第三临床医学院_放射科_期刊论文

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作者单位: 1.100191,北京大学第三医院放射科
2.北京通用电气华伦医疗设备有限公司X光研发部
3.北京大学第三医院

Recommended Citation:
王晓华,刘东声,宣晓,等. 管电压对体模及接尘者数字化X线胸片图像的影响[J]. 中华劳动卫生职业病杂志,2013,31(9):671-674.
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