ABSTRACT
Age and sex specific data were obtained concerning diagnostic radiographic procedures performed in the Netherlands over the years 1984-1985. The average annual procedure frequency per caput excluding dental examinations in dentists' practices and mass survey examinations amounted to 0.537. Male and female examination frequencies were determined as 0.543 and 0.531, respectively. Trends in X-ray examination frequency were followed from 1967 to 1988. Until 1982, the X-ray examination frequency was increasing by an average of 4% per year. Mainly because of a decrease in high dose examinations, the annual examination frequency per caput has been decreasing since then. As a consequence, the somatic effective dose equivalent to the population from diagnostic X-ray examinations is expected to decrease to a value of about 0.4 mSv for the year 1989.
Subject(s)
Radiography/statistics & numerical data , Adolescent , Adult , Age Factors , Aged , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Middle Aged , Netherlands , Sex FactorsABSTRACT
Age- and sex-specific data were obtained concerning nuclear medicine procedures performed in The Netherlands in 1984. The average annual per capita procedure frequency amounted to 0.011. Using recent organ dose data for a large number of common radiopharmaceuticals (ICRP, Publ. 52/53, 1987) the somatic effective dose equivalent (SED) and the genetically significant dose equivalent (GSD) were calculated. The collective SED yielded 575 person-Sv per annum. The annual per capita SED was 40 microSv. The Genetically Significant Dose turned out to be approximately 3.2 microSv per person per year.
Subject(s)
Population Surveillance , Radiation Dosage , Radionuclide Imaging , Age Factors , Female , Humans , Male , Netherlands , RiskABSTRACT
The results of an inventory of medical X-ray apparatus in Dutch hospitals are presented and discussed. An inquiry covering a total of 226 hospitals yielded a response of 92%. The questionnaires contained preprinted data from an earlier inventory of registered X-ray apparatus at the Ministry of Physical Planning, Housing and the Environment. At present the total number of X-ray apparatus in Dutch hospitals is 3,008, of which 2.820 are of the diagnostic X-ray type. The accumulated data show that approximately 8 million X-ray examinations were performed in hospitals during the year 1984, corresponding to 0.56 X-ray examinations per inhabitant per year.
