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Estimation of population doses from diagnostic medical examinations in Japan, 1974. III. Per caput mean marrow dose and leukemia significant dose

Journal Article:

Abstract

The mean per capita marrow dose and leukemia-significant dose from radiographic and fluoroscopic examinations in Japan have been estimated based on a 1974 nation wide survey of randomly sampled hospitals and clinics. To determine the mean marrow dose to an individual from a certain exposure of a given type of examination, the active marrow in the whole body was divided into 119 parts for an adult and 103 for a child. Dosimetric points on which the individual marrow doses were determined were set up in the center of each marrow part. The individual marrow doses at the dosimetric points in the beams of practical diagnostic x-rays were calculated on the basis of the exposure data on the patients selected in the nation wide survey, using depth dose curves experimentally determined for diagnostic x-rays. The mean individual marrow dose was averaged over the active marrow by summing, for each dosimetric point, the product of the fraction of active marrow exposed and the individual marrow dose at the dosimetric point. The leukemia significant dose was calculated by adopting a weighting factor that is, a leukemia significant factor. The factor was determined from the shape of the time-incidence curve for radiation-induced leukemia from  More>>
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-08-296576; EDB-77-076651
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.; HUMAN POPULATIONS; RADIATION DOSES; AGE GROUPS; BIOMEDICAL RADIOGRAPHY; BONE MARROW; DIAGNOSIS; JAPAN; LEUKEMIA; LEUKEMOGENESIS; STATISTICS; X RADIATION; ASIA; BODY; CARCINOGENESIS; DIAGNOSTIC TECHNIQUES; DISEASES; DOSES; ELECTROMAGNETIC RADIATION; HEMATOPOIETIC SYSTEM; HEMIC DISEASES; IONIZING RADIATIONS; MATHEMATICS; MEDICINE; NEOPLASMS; NUCLEAR MEDICINE; ORGANS; PATHOGENESIS; POPULATIONS; RADIATIONS; RADIOLOGY; TISSUES; 560151* - Radiation Effects on Animals- Man
OSTI ID:
7224189
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: NHGZA
Submitting Site:
INIS
Size:
Pages: 216-224
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. III. Per caput mean marrow dose and leukemia significant dose. Japan: N. p., 1976. Web.
Hashizume, T, Maruyama, T, & Kumamoto, Y. Estimation of population doses from diagnostic medical examinations in Japan, 1974. III. Per caput mean marrow dose and leukemia significant dose. Japan.
Hashizume, T, Maruyama, T, and Kumamoto, Y. 1976. "Estimation of population doses from diagnostic medical examinations in Japan, 1974. III. Per caput mean marrow dose and leukemia significant dose." Japan.
@misc{etde_7224189,
title = {Estimation of population doses from diagnostic medical examinations in Japan, 1974. III. Per caput mean marrow dose and leukemia significant dose}
author = {Hashizume, T, Maruyama, T, and Kumamoto, Y}
abstractNote = {The mean per capita marrow dose and leukemia-significant dose from radiographic and fluoroscopic examinations in Japan have been estimated based on a 1974 nation wide survey of randomly sampled hospitals and clinics. To determine the mean marrow dose to an individual from a certain exposure of a given type of examination, the active marrow in the whole body was divided into 119 parts for an adult and 103 for a child. Dosimetric points on which the individual marrow doses were determined were set up in the center of each marrow part. The individual marrow doses at the dosimetric points in the beams of practical diagnostic x-rays were calculated on the basis of the exposure data on the patients selected in the nation wide survey, using depth dose curves experimentally determined for diagnostic x-rays. The mean individual marrow dose was averaged over the active marrow by summing, for each dosimetric point, the product of the fraction of active marrow exposed and the individual marrow dose at the dosimetric point. The leukemia significant dose was calculated by adopting a weighting factor that is, a leukemia significant factor. The factor was determined from the shape of the time-incidence curve for radiation-induced leukemia from the Hiroshima A-bomb and from the survival statistics for the average population. The resultant mean per capita marrow dose from radiographic and fluoroscopic examination was 37.0 and 70.0 mrad/person/year, respectively, with a total of 107.05 mrad/person/year. The leukemia significant dose was 32.1 mrad/person/year for radiographic examination and 61.2 mrad/person/year, with a total of 93.3. These values were compared with those of 1960 and 1969.}
journal = {Nippon Igaku Hoshasen Gakkai Zasshi; (Japan)}
volume = {36:3}
journal type = {AC}
place = {Japan}
year = {1976}
month = {Mar}
}