ID 110602
タイトルヨミ
シンリョウヨウ ホウシャセン ニヨル カンジャ ヒバク
タイトル別表記
Diagnostic medical exposures and your patient
著者
上野, 淳二 徳島大学医学部保健学科診療放射線技術学講座 徳島大学 教育研究者総覧 KAKEN研究者をさがす
キーワード
radiation risk
interventional radiology (IVR)
computed tomography (CT)
diagnostic reference level
資料タイプ
学術雑誌論文
抄録
All medical exposures should be justified (more benefit than risk). This requires not only knowledge of medicine but also of the radiation risks. The magnitude of risk from radiation is dose-related with higher amounts of radiation being associated with higher risks. The aim of managing radiation exposure is to minimise the putative risk without sacrificing, or unduly limiting, the obvious benefits in the prevention, diagnosis and also in effective cure of diseases (optimization). Various diagnostic radiology procedures cover a wide dose range based upon the procedure. There may be a wide variation in the dose given for the same procedure on a specific individual when performed at different facilities. This variation may be up to a factor of ten and is often due to differences in the technical factors for the procedure. Interventional Radiology is increasingly used by practitioners in many specialties to reduce morbidity and mortality. However, there is a growing literature on serious skin injuries to patients from IVR procedures. The frequency of CT examinations is also increasing rapidly. The absorbed dose to tissues from CT can often approach or exceed the levels known to increase the probability of cancer as shown in epidemiological studies. Especially both the fetus and children are thought to be more radiosensitive than adults. Diagnostic radiology is extremely unlikely to result in doses that cause malformations or a decrease in intellectual function. The main issue following in-utero or childhood exposure at typical diagnostic levels (<50 mGy) is cancer induction. Now diagnostic reference levels can be used to help manage the radiation dose to patients so that the dose is commensurate with the clinical purpose. Appropriate equipment and training are needed to minimize this risk. Patient counseling should be undertaken routinely, and follow up when appropriate.
掲載誌名
四国医学雑誌
ISSN
00373699
cat書誌ID
AN00102041
出版者
徳島医学会
59
3
開始ページ
122
終了ページ
129
並び順
122
発行日
2003-06-13
EDB ID
85494
フルテキストファイル
言語
jpn
著者版フラグ
出版社版
部局
医学系