Diagnostic Reference Levels Dervied from Recent Surveys on Patient Dose for Various Types of Radiological Examination in the Netherlands

In recent years surveys have been performed in the Netherlands to determine patient doses for various types of examination in diagnostic radiology. These surveys comprised examinations of chest, breast, colon, computed tomography and non-cardiovascular radiology procedures. In general, in these studies measurements were performed at 10 to 20 X ray units in different hospitals. The majority of the studies aimed at determination of effective dose...