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Estimation of population doses from diagnostic medical examinations in Japan, 1974. II. Estimation of genetically significant dose

Journal Article:

Abstract

The genetically significant dose from radiographic and fluoroscopic examination in Japan has been estimated based on a 1974 nation wide survey of randomly sampled hospitals and clinics. The gonad dose during x-ray diagnosis was determined with an ionization chamber placed at the positions of ovary and testis in a Rando phantom. The instrumented phantom was irradiated with medical diagnostic x-rays on the basis of the exposure data on the patients selected in the nation wide survey. In the calculation of the genetically significant dose, the child expectancy of the patients that undergo each particular type of examination was assumed to be same as that of the general population. The resultant genetically significant dose was 11.1 and 5.43 mrad per person per year for radiography and fluoroscopy, respectively. These values were compared with those of 1960 and 1969. Though the number of examinations per year shows a yearly increase, the genetically significant dose is gradually on the decrease. This may be due to technical improvements in medical radiological practices.
Authors:
Hashizume, T; Maruyama, T; Kumamoto, Y [1] 
  1. National Inst. of Radiological Sciences, Chiba (Japan)
Publication Date:
Mar 01, 1976
Product Type:
Journal Article
Reference Number:
AIX-08-296575; EDB-77-076650
Resource Relation:
Journal Name: Nippon Igaku Hoshasen Gakkai Zasshi; (Japan); Journal Volume: 36:3
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; BIOMEDICAL RADIOGRAPHY; GENETICALLY SIGNIFICANT DOSE; HUMAN POPULATIONS; AGE GROUPS; DIAGNOSIS; JAPAN; OVARIES; RADIATION HAZARDS; STATISTICS; ASIA; BODY; DIAGNOSTIC TECHNIQUES; DOSES; FEMALE GENITALS; GONADS; HAZARDS; HEALTH HAZARDS; MATHEMATICS; MEDICINE; NUCLEAR MEDICINE; ORGANS; POPULATIONS; RADIATION DOSES; RADIOLOGY; 560151* - Radiation Effects on Animals- Man
OSTI ID:
7224191
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: NHGZA
Submitting Site:
INIS
Size:
Pages: 208-215
Announcement Date:
Apr 01, 1977

Journal Article:

Citation Formats

Hashizume, T, Maruyama, T, and Kumamoto, Y. Estimation of population doses from diagnostic medical examinations in Japan, 1974. II. Estimation of genetically significant dose. Japan: N. p., 1976. Web.
Hashizume, T, Maruyama, T, & Kumamoto, Y. Estimation of population doses from diagnostic medical examinations in Japan, 1974. II. Estimation of genetically significant dose. Japan.
Hashizume, T, Maruyama, T, and Kumamoto, Y. 1976. "Estimation of population doses from diagnostic medical examinations in Japan, 1974. II. Estimation of genetically significant dose." Japan.
@misc{etde_7224191,
title = {Estimation of population doses from diagnostic medical examinations in Japan, 1974. II. Estimation of genetically significant dose}
author = {Hashizume, T, Maruyama, T, and Kumamoto, Y}
abstractNote = {The genetically significant dose from radiographic and fluoroscopic examination in Japan has been estimated based on a 1974 nation wide survey of randomly sampled hospitals and clinics. The gonad dose during x-ray diagnosis was determined with an ionization chamber placed at the positions of ovary and testis in a Rando phantom. The instrumented phantom was irradiated with medical diagnostic x-rays on the basis of the exposure data on the patients selected in the nation wide survey. In the calculation of the genetically significant dose, the child expectancy of the patients that undergo each particular type of examination was assumed to be same as that of the general population. The resultant genetically significant dose was 11.1 and 5.43 mrad per person per year for radiography and fluoroscopy, respectively. These values were compared with those of 1960 and 1969. Though the number of examinations per year shows a yearly increase, the genetically significant dose is gradually on the decrease. This may be due to technical improvements in medical radiological practices.}
journal = {Nippon Igaku Hoshasen Gakkai Zasshi; (Japan)}
volume = {36:3}
journal type = {AC}
place = {Japan}
year = {1976}
month = {Mar}
}