Conway B J, Suleiman O H, Rueter F G, Antonsen R G, Slayton R J
U.S. Food and Drug Administration, Center for Devices and Radiological Health, Rockville, MD 20857.
Radiology. 1994 May;191(2):323-30. doi: 10.1148/radiology.191.2.8153301.
To determine trends in mammography in the United States.
A sample of mammographic facilities was selected for each year of the Nationwide Evaluation of X-ray Trends. The same protocol was followed for the 1985, 1988, and 1992 surveys. Data were collected with use of the same imaging phantom for all three surveys and also with a different phantom in the 1988 and 1992 surveys.
Of the 356 facilities surveyed in 1992, 59% claimed to be in compliance with the Health Care Financing Administration (HCFA) mammography requirements, 42% were accredited by the American College of Radiology (ACR), and 23% did not hold credentials from either the HCFA or the ACR. Since 1985, there has been a 34% improvement in acceptable phantom image quality score and a 20% decrease in the mean glandular dose.
Mammography as practiced today is essentially a screen-film technique. Mammographic phantom image quality has improved considerably. The overall mean glandular dose has decreased primarily because of the elimination of xeroradiography.
确定美国乳腺X线摄影术的发展趋势。
在全国X线趋势评估的每一年中，选取乳腺X线摄影设施的样本。1985年、1988年和1992年的调查遵循相同的方案。所有三次调查都使用相同的成像体模收集数据，1988年和1992年的调查还使用了不同的体模。
在1992年接受调查的356家设施中，59%声称符合医疗保健财务管理局（HCFA）的乳腺X线摄影要求，42%获得了美国放射学会（ACR）的认证，23%既没有HCFA也没有ACR的资质认证。自1985年以来，可接受的体模图像质量评分提高了34%，平均腺体剂量降低了20%。
如今的乳腺X线摄影术本质上是一种屏-片技术。乳腺X线摄影体模图像质量有了显著提高。总体平均腺体剂量下降主要是因为干式放射摄影术的淘汰。
