File
language
eng
Attribute
original article
Author
Nohara, Takahiko
Asai, Masatoshi
Tanaka, Shuzo
Description
Although diagnostic X-rays provide benefits, their use should be avoided as much as possible. While the risk of X-ray examination may be not always surpassed the benefit in medical treatment, it may far exceed the benefit of health-check examination for well persons, because of the loss of life or life expectancy caused by radiation exposure. Therefore, it is necessary to define the risks and benefits of the chest fluororoentgenography in order to make an impartial evaluation. As digitizing the benefits of the chest X-ray examination are comparatively difficult, we consider the Mori's article with using the method of the Waaler's model, which was constructed by the epidemiology of tuberculosis. As to the risks of the examination, it is possible to digitize by measuring the radiation exposed dose at the time of a chest radiography. And the risk estimation model is obtained by the loss of life expectancy due to lethal cancer induced by radiation. Consequently, we perceived the risks and benefits are almost equal or the benefits surpassed the risks provided the radiation dose of the chest X-ray examination is O.5 mSv or less. And further, it may be also expedient using a dose (= l mSv) as an upper limit which is the maximum permissible exposure to public radiation in a year recommended by the "International Commission on Radiological Protection".
Journal Title
Shimane journal of medical science
Volume
24
Start Page
21
End Page
27
ISSN
03865959
ISSN(Online)
24332410
Published Date
2007-12-01
NCID
AA00841586
Publisher Aalternative
Shimane University Faculty of Medicine
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Faculty of Medicine
Remark
http://ci.nii.ac.jp/vol_issue/nels/AA00841586_jp.html