<原著>X線検査時における胎児被ばく防止に関する調査研究

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ICRP (International Commission on Radiological Protection) recommended in 1966,that all radiological examinations of the lower abdomen and pelvis of women of reproductive capacity that are not of importance in connection with the immediate illness of the patient, be limited in time to the 10 day period when pregnancy is improbable. However, ICRP abandoned the 10-day rule and in 1984,recommended the new idea of the 4-week rule, that is, the risk to a child who had been previously irradiated in utero during the remainder of a 4 week period following the onset of menstruation is likely to be so small that there need be no special limitation on exposures required within these 4 weeks. And the newest recommendation (Publication 60) stresses the case-by-case justification for each procedure, and information on possible pregnancy should be obtained from the patient herself. Therefore, the role of radiological technologists in radiation protection of the fetus is very important. In this study, we conducted a questionnaire investigation of consciousness of radiation protection among Japanese radiolodical technologists, and their checking systems. Our results, showed that 87.7% of Japanese radiological technologists always try to reduce the irradiation to patients. Although more than 90.0% of them check the pregnancy before the procedures, only 6.9% of them understand the 10-day rule correctly, and 36.0% of them experienced X-ray exposure to pregnant women without any recognition.
1996-03-30

<原著>X線検査時における胎児被ばく防止に関する調査研究

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