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タイトル別表記
X線透視による医療者及び患者の被曝量の検討 : 未固定遺体を用いた研究
著者
山下, 一太 徳島大学大学院医科学教育部(医学専攻) 徳島大学 教育研究者総覧
キーワード
radiation exposure dose
fluoroscopy
cadaver study
minimally invasive surgery
direct radiation
scatter radiation
資料タイプ
学位論文
抄録
Study Design. Using fresh cadavers, real-time dosimeters were used to estimate the radiation exposure dose from C-arm fluoroscopy to surgeons, medical staff, and patients during various procedures.
Objective. To evaluate the radiation exposure dose from C-arm fluoroscopy, which is used to generate real-time images of the human body, under a variety of conditions and in different areas.
Summary of Background Data. Awareness of the harmful effects of long-term low-dose radiation is rising. There are no all-inclusive reports evaluating the radiation exposure dose to medical staff associated with fluoroscopic procedures which can accurately simulate the real clinical situation.
Methods. Seven fresh cadavers were irradiated for 1, 3, and 5 min with C-arm fluoroscopy. The X-ray source was positioned under the table, over the table, and laterally. Radiation exposure doses were measured at different simulated areas such as the center area, and the surgeon’s hand or thyroid gland.
Results. There were significant differences in the radiation exposure dose under different conditions and for different irradiated areas. The risk of direct and scatter radiation exposure was the greatest with the lateral position, which increased by more than 200 times and more than 30 times, respectively, compared with that from a position under the table. Direct radiation was attenuated to less than one-hundredth after passing through the body of the cadaver. All radiation exposure doses were positively correlated with total exposure time.
Conclusions. Our study revealed the direct and scatter radiation exposure dose from C-arm fluoroscopy to different areas under a variety of conditions when fluoroscopy is used to generate real-time images of the human body. Our results serve as a guide for medical staff to understand the risk of radiation exposure during each fluoroscopic procedure. Medical staff, especially surgeons, should consider how to protect themselves and reduce radiation exposure by using appropriate shielding.
掲載誌名
Spine
ISSN
03622436
15281159
cat書誌ID
AA0084801X
AA12431865
出版者
Lippincott Williams & Wilkins|Wolters Kluwer Health, Inc.
41
15
開始ページ
1254
終了ページ
1260
発行日
2016-08-01
備考
内容要旨・審査要旨・論文本文の公開
本論文は,著者Kazuta Yamashitaの学位論文として提出され,学位審査・授与の対象となっている。
権利情報
This the final peer-reviewed manuscript is made available under the CC-BY-NC 4.0 license http://creativecommons.org/licenses/by-nc/4.0/
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
博士論文全文を含む
文科省報告番号
甲第3269号
学位記番号
甲医第1418号
学位授与年月日
2019-03-22
学位名
博士(医学)
学位授与機関
徳島大学
部局
医学系
病院