Burgess A
Radiology. 1979 Nov;133(2):491-5. doi: 10.1148/133.2.491.
The design and implementation of a program to investigate remote quality assurance testing for film mammography is described. The measurements included tube output, x-ray machine and processor stability, and film quality. Mammography phantoms and film sensitometric strips were distributed monthly to 24 regional hospitals. Most of the hospital processors and x-ray machines performed in a stable manner during the 12-month test period. It was found that x-ray machine useful beams could be reliably measured using nonscreen films. The main utility of the phantom was to identify cases of poor image quality. The measurements performed on the phantom image could not be used to diagnose specific causes of poor images.
本文描述了一项用于研究乳腺钼靶远程质量保证测试程序的设计与实施。测量内容包括管输出、X光机和处理器稳定性以及胶片质量。每月向24家地区医院分发乳腺摄影体模和胶片感光测定条。在为期12个月的测试期内，大多数医院的处理器和X光机运行稳定。研究发现，使用非增感屏胶片可以可靠地测量X光机的有用射线束。体模的主要用途是识别图像质量差的情况。对体模图像进行的测量不能用于诊断图像质量差的具体原因。
