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胸椎直接数字X线摄影与传统X线摄影对比分析

Direct digital radiography vs conventional radiography of thoracic spine: a comparative study

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【作者】 梁文华钱立彭东红齐英杰

【Author】 LIANG Wenhua, QIAN Li, PENG Donghong, et al. Department of Radiology, Shenzhen People’s Hospital, Shenzhen 518020

【机构】 暨南大学第二附属医院、深圳市人民医院放射科暨南大学第二附属医院、深圳市人民医院放射科 518020518020

【摘要】 目的评价直接数字X线摄影(DR)在胸椎的应用,以及与传统胸椎摄影的对比。方法抽取我院DR胸椎摄影影像和传统胸椎摄影照片各89例,由3位副主任医师及2名主管技师对影像进行分析,用2种方法统计:①按照片质量分甲、乙、丙、废片;②以胸椎侧位分为上、中、下3段显示比例评定。根据2种方法综合评价。结果按照片质量评定:DR影像甲片率74.1%、乙级片率20.2%、丙级片率5.7%、废片率0%;传统照片甲片率45%、乙级片率41.6%、丙级片率11.2%、废片率2.2%;按部位显示评定:DR影像上段胸椎显示率87.6%、中段显示率100%、下段显示率76.4%;传统照片上段胸椎显示率15.3%、中段胸椎显示率75.3%、下段胸椎显示率51.7%。经统计学处理,差异有非常显著性意义(χ2=15.823P<0.001)结论DR胸椎摄影的诊断图像质量明显好于传统胸椎摄影,尤其是上段胸椎显示率明显提高。DR系统成像快捷,操作简单,有利于提高放射科工作效率,有利于放射影像诊断。

【Abstract】 Objective An evaluation of the application of DR in thoracic spine and a comparative study of the DR with the conventional radiography.Methods DR images and the conventional radiogram of 89 cases respectively were evaluated by 3 vice-consultant doctors and 2 chief technicians. Statistics was processed with 2 categories: ①images were classified into grade A, B, C and condemned according to the image quality; and ②thoracic spine are divided into upper, middle and lower portions, in which the rate of successful imaging were compared respectively. Results The image quality of DR: 74.1%images in grade A, 20.2%in grade B, 5.7%in grade C, and no image condemned. Conventional radiogram: 45%images in grade A, 41.6%in grade B, 11.2%in grade C, and 2.2%images condemned. The successful imaging rate in each portion: DR films 87.6%in upper thoracic spine, 100%in middle portion, and 76.4%in lower portion with DR. While the rate was 15.3%in upper portion, 75.3%in middle portion, and 51.7%in lower thoracic spine with conventional radiography. Conclusion In the imaging of the thoracic spine, DR has a superior image quality and success rate to the conventional radiography , especially in the upper thoracic spine. DR system is easy to manipulate, quick in obtaining image, increases the efficiency of the radiology department, and facilitates the image interpretation.

【关键词】 放射摄影术胸椎信息处理计算机
【Key words】 RadiographyThoracic spineSignal processingComputer
  • 【文献出处】 影像诊断与介入放射学 ,Journal of Diagnostic Imaging & Interventional Radiology , 编辑部邮箱 ,2005年03期
  • 【分类号】R816.8;
  • 【被引频次】5
  • 【下载频次】42
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