Neumann K, Lemke A J, Hosten N, Keske U
Zentralinstitut für Röntgendiagnostik, Universitätsklinikum Essen.
Radiologe. 1995 Mar;35(3):171-81.
The principles for estimation of the patient's radiation dose from conventional radiographic and computed tomography examinations are presented on the basis of published exposure simulation data. The relationship between absorbed dose in air, or axis dose, organ doses, and effective dose is explained. It is shown how organ doses can be calculated from the absorbed dose free in air or axis dose using published computed conversion factors. Calculation of the effective dose from organ doses using tissue weighting factors is described. Finally, examples of dose calculation are given for a conventional radiographic and a CT examination.
基于已发表的曝光模拟数据，介绍了从传统放射成像和计算机断层扫描检查估算患者辐射剂量的原则。解释了空气吸收剂量（或轴剂量）、器官剂量和有效剂量之间的关系。展示了如何使用已发表的计算转换因子，根据空气中的吸收剂量或轴剂量来计算器官剂量。描述了使用组织权重因子从器官剂量计算有效剂量的方法。最后，给出了传统放射成像和CT检查剂量计算的示例。
