Boal T J, Dessent K W, Facci M
Australas Phys Eng Sci Med. 1998 Dec;21(4):161-9.
A survey of fluoroscopic units in the state of Victoria has been carried out. For fixed fluoroscopy equipment, routine quality assurance tests were carried out on the x-ray tube used for conventional radiographs, and factors relating to image quality and patient dose were measured for the screening tube. For the mobile image intensifiers, quality assurance tests were carried out and factors relating to image quality and patient dose were measured. There was a ratio of about 20 in the dose rates between the units with the highest and lowest screening dose rates with the same size phantom. Guidance levels based on the third quartile values of the entrance dose rates and spot film doses are recommended. The recommended guidance doses are: mobile image intensifier: dose rate: 30 mGy/min; fixed screening unit: dose rate: 42 mGy/min and spot film: 5 mGy.
对维多利亚州的荧光透视设备进行了一项调查。对于固定荧光透视设备，对用于传统X光片的X射线管进行了常规质量保证测试，并对筛查管测量了与图像质量和患者剂量相关的因素。对于移动影像增强器，进行了质量保证测试，并测量了与图像质量和患者剂量相关的因素。在使用相同尺寸体模的情况下，筛查剂量率最高和最低的设备之间的剂量率之比约为20。建议根据入射剂量率和点片剂量的第三四分位数确定指导水平。推荐的指导剂量为：移动影像增强器：剂量率：30毫戈瑞/分钟；固定筛查设备：剂量率：42毫戈瑞/分钟，点片：5毫戈瑞。
