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Estimation of population doses from diagnostic medical examinations in Japan, 1974. IV. Dose estimation of fetus exposed in utero to diagnostic x rays

Journal Article:

Abstract

In fetus exposed in utero to diagnostic x rays for the medical examinations of the mother, the absorbed dose has been estimated on the basis of a 1974 nation wide radiological survey. The results of the survey showed that the number of radiographs per year connected with pregnant women was 0.32 million for chest examination excluding mass surveys. 0.29 million for obstetrical examinations including pelvimetry, and 0.21 million for abdominal and pelvic examinations with a total of 0.82 million. The dose absorbed in the fetus was measured with an ionization chamber placed at the hypothetical center of the fetus in an ''average woman'' Rando phantom in which a maternal body was simulated by adding MixDp materials. ''The collective dose'' to the fetus in the pregnant women receiving a given type of examination was calculated from the number of radiographs per year connected with the pregnant women and the fetal doses. The percapita mean marrow dose (CMD), the leukemia significant dose (LSD) and the genetically significant dose (GSD) for the fetus were determined from the collective dose, taking into account the birth expectancy, the child expectancy, life expectancy and significant factor for the fetus. The collective dose to the fetus was  More>>
Authors:
Hashizume, T; Maruyama, T; Kumamoto, Y [1] 
  1. National Inst. of Radiological Sciences, Chiba (Japan)
Publication Date:
Jul 01, 1976
Product Type:
Journal Article
Reference Number:
AIX-08-332680; EDB-78-023354
Resource Relation:
Journal Name: Nippon Igaku Hoshasen Gakkai Zasshi; (Japan); Journal Volume: 36:7
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 62 RADIOLOGY AND NUCLEAR MEDICINE; BIOMEDICAL RADIOGRAPHY; RADIATION DOSES; FETUSES; GENETICALLY SIGNIFICANT DOSE; JAPAN; PERSONNEL MONITORING; PRENATAL IRRADIATION; STATISTICS; UTERUS; ASIA; BODY; DIAGNOSTIC TECHNIQUES; DOSES; FEMALE GENITALS; IRRADIATION; MATHEMATICS; MEDICINE; MONITORING; NUCLEAR MEDICINE; ORGANS; RADIATION MONITORING; RADIOLOGY; 560151* - Radiation Effects on Animals- Man; 550600 - Medicine
OSTI ID:
5353621
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: NHGZA
Submitting Site:
INIS
Size:
Pages: 645-651
Announcement Date:
Dec 01, 1977

Journal Article:

Citation Formats

Hashizume, T, Maruyama, T, and Kumamoto, Y. Estimation of population doses from diagnostic medical examinations in Japan, 1974. IV. Dose estimation of fetus exposed in utero to diagnostic x rays. Japan: N. p., 1976. Web.
Hashizume, T, Maruyama, T, & Kumamoto, Y. Estimation of population doses from diagnostic medical examinations in Japan, 1974. IV. Dose estimation of fetus exposed in utero to diagnostic x rays. Japan.
Hashizume, T, Maruyama, T, and Kumamoto, Y. 1976. "Estimation of population doses from diagnostic medical examinations in Japan, 1974. IV. Dose estimation of fetus exposed in utero to diagnostic x rays." Japan.
@misc{etde_5353621,
title = {Estimation of population doses from diagnostic medical examinations in Japan, 1974. IV. Dose estimation of fetus exposed in utero to diagnostic x rays}
author = {Hashizume, T, Maruyama, T, and Kumamoto, Y}
abstractNote = {In fetus exposed in utero to diagnostic x rays for the medical examinations of the mother, the absorbed dose has been estimated on the basis of a 1974 nation wide radiological survey. The results of the survey showed that the number of radiographs per year connected with pregnant women was 0.32 million for chest examination excluding mass surveys. 0.29 million for obstetrical examinations including pelvimetry, and 0.21 million for abdominal and pelvic examinations with a total of 0.82 million. The dose absorbed in the fetus was measured with an ionization chamber placed at the hypothetical center of the fetus in an ''average woman'' Rando phantom in which a maternal body was simulated by adding MixDp materials. ''The collective dose'' to the fetus in the pregnant women receiving a given type of examination was calculated from the number of radiographs per year connected with the pregnant women and the fetal doses. The percapita mean marrow dose (CMD), the leukemia significant dose (LSD) and the genetically significant dose (GSD) for the fetus were determined from the collective dose, taking into account the birth expectancy, the child expectancy, life expectancy and significant factor for the fetus. The collective dose to the fetus was estimated to be 9.3 x 10/sup 4/ man rad per year. The resultant values of CMD, LSD and GSD were 0.81 mrad per year, 0.79 mrad per person per year and 1.44 mrad per person per year, respectively.}
journal = {Nippon Igaku Hoshasen Gakkai Zasshi; (Japan)}
volume = {36:7}
journal type = {AC}
place = {Japan}
year = {1976}
month = {Jul}
}