新型宽域X线增感屏的研制  

Develop of a New Wide-range X-ray Intensifying Screen

作　　者：刘定正 顾明[1] 汪庆华[1] 胡朝芬[1] 黄林[2] 罗万福 

机构地区：[1]成都军区总医院放射科,四川成都610083 [2]四川大学华西一院放射科 [3]四川大学华西口腔医院

出　　处：《实用放射学杂志》2003年第3期270-271,共2页Journal of Practical Radiology

摘　　要：目的　常规胸片上 ,在不改变投照条件下 ,使脊柱、纵隔、心后肺内占位病灶和两侧肺野内细小病变 ,均能清晰地显示在同一张照片上。方法　通过对现有增感屏的增感物质在布局上加以改变和技术处理 ,即中央部分涂成高速增感物质 ,两侧涂成中速增感物质。结果　用新屏对 7例患者进行投照 ,其结果是脊柱、纵隔、心后肺内占位病灶均较清晰地显示在同一张照片上 ,基本达到预期目的。结论　在常规胸片上 ,新型宽域X线增感屏能给X线诊断提供更多、更清晰。Objective To display space occupying lesions of spine,mediastina and lungs behind heart and small lesions in bilateral pulmonary fields in the same chest film without changing the exposure doses which were now used for routine chest images.Methods The distribution of current intensifying screens' intensifying materials were changed and reasonable technical processes were given.High-velocity and middle-velocity intensifying materials were placed in center and in two sides of the screen respectively.Results Tests in seven volunteers using the new kind intensifying screens demonstrated that diseases could be better shown than normal intensifying screens in chest images.Conclusion The renovation can provide more and clearer and richer stratifications of image information to help chest X-ray diagnoses.

关 键 词：X线增感屏 X线胸片 技术改进 X线平片 

分 类 号：R812[医药卫生—放射医学]