Johnson J L, Abernathy D L
Radiology. 1983 Mar;146(3):851-3. doi: 10.1148/radiology.146.3.6828707.
Comprehensive data on 1979 and 1980 diagnostic imaging procedure volume were collected from a stratified random sample of U.S. short-term general-care hospitals and private practices of radiologists, cardiologists, obstetricians/gynecologists, orthopedic surgeons, and neurologists/neurosurgeons. Approximately 181 million imaging procedures (within the study scope) were performed in 1980. Despite the rapidly increasing use of newer imaging methods, plain film radiography (140.3 million procedures) and contrast studies (22.9 million procedures) continue to comprise the vast majority of diagnostic imaging volume. Ultrasound, computed tomography, nuclear medicine, and special procedures make up less than 10% of total diagnostic imaging procedures. Comparison of the data from this study with data from an earlier study indicates that imaging procedure volume in hospitals expanded at an annual growth rate of almost 8% from 1973 to 1980.
1979年和1980年诊断成像程序量的综合数据是从美国短期综合护理医院以及放射科医生、心脏病专家、妇产科医生、骨科医生和神经科医生/神经外科医生的私人诊所的分层随机样本中收集的。1980年进行了约1.81亿次成像程序（在研究范围内）。尽管更新的成像方法使用迅速增加，但普通X线摄影（1.403亿次程序）和造影检查（2290万次程序）仍然占诊断成像量的绝大部分。超声、计算机断层扫描、核医学和特殊程序占总诊断成像程序的比例不到10%。本研究数据与早期研究数据的比较表明，1973年至1980年，医院成像程序量以近8%的年增长率增长。
