工频X线机和中频X线机在胸部计算机X线摄影中应用分析  

Comparison of traditional industrial and intermediate frequency X-ray unit in computed radiography for chest

作　　者：刘道永[1] 关峰[1] 牛延涛[2] 牟文斌[3] 温洋[1] 

机构地区：[1]首都医科大学附属北京儿童医院影像中心,北京100045 [2]首都医科大学附属北京同仁医院放射科,北京100730 [3]北京协和医院放射科,北京100730

出　　处：《生物医学工程与临床》2007年第6期489-491,共3页Biomedical Engineering and Clinical Medicine

摘　　要：目的分析工频X线机和中频X线机在胸部计算机X线摄影(CR)中的图像质量,监测相应辐射剂量,比较两种X线机在CR摄影中的适用性。方法使用工频X线机和中频X线机摄取2～3岁小儿胸片共28例,分析图像质量,监测辐射剂量;并对两种X线机高压输出及IP对X线吸收特点进行分析。结果同工频X线机相比,中频X线机更易获得优质图像,且降低了辐射剂量。结论在CR应用中,中频X线机比工频X线机有明显优势。Objective To compare and evaluate the traditional industrial and intermediate frequency X-ray unit in computed radiography for chest. Methods Twenty-eight children aged 2 - 3 years were examined by industrial and intermediate frequency X- ray unit in computed radiography for chest,respectively. All the images were analysed and the corresponding radiation dose was observed. Results The chest films of computed radiography by the intermediate frequency X-ray unit were of higher quality than those by the industrial frequency X-ray unit. Radiation dose of the intermediate frequency X-ray unit was less than that of the industrial frequency X-ray unit. Conclusion For computed radiography,intermediate frequency X-ray unit is superior to industrial frequency X-ray unit.

关 键 词：计算机X线摄影 工频X线机 中频X线机 X射线成像 

分 类 号：R816.4[医药卫生—放射医学]