CANCER RISK IN X-RAY TECHNOLOGISTS

明尼苏达大学与国家癌症研究所签订了合同， 该研究所评估了近14.5万名工人的健康状况， 自1982年以来，美国放射技术人员注册处。 一 完成了9万多人的全面基线调查 1984-1989年的技术人员。 目前正在进行第二次调查， 自第一次调查以来诊断出的癌症的详细信息。 的 该合同的目标是完成和扩大癌症调查， 美国X射线技术人员的发病率，并量化风险 与职业辐射照射有关的特定癌症。 生物剂量学技术的广泛应用将用于 表征辐射暴露。 此外，可能的作用， 遗传易感性可能在辐射诱发的癌症中起作用， 在35岁以下患乳腺癌的女性中进行评估。

The University of Minnesota has been under contract to the National Cancer Institute in evaluating the health of nearly 145,000 workers certified by the American Registry of Radiologic Technologists since 1982. A comprehensive baseline survey was completed by more than 90,000 technologists between 1984-1989. A second survey is ongoing to obtain detailed information on cancers diagnosed since the first survey. The objectives of this contract are to complete and extend the survey of cancer incidence among U.S. x-ray technologists and to quantify the risk of specific cancers associated with occupational radiation exposures. Extensive application of biological dosimetry techniques will be used to characterize radiation exposures. In addition, the possible role that genetic susceptibility may play in radiation-induced cancers will be evaluated among women who developed breast cancer under the age of 35.