Radiation Exposure to the Surgeon and Patient During a Fluoroscopic Procedure : How High Is the Exposure Dose? A Cadaveric Study

書誌事項

タイトル
Radiation Exposure to the Surgeon and Patient During a Fluoroscopic Procedure : How High Is the Exposure Dose? A Cadaveric Study
タイトル別名
  • 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
著者別名
  • ヤマシタ, カズタ
  • Yamashita, Kazuta
著者
東野, 恒作
著者別名
  • ヒガシノ, コウサク
  • Higashino, Kousaku
著者
和田, 佳三
著者別名
  • ワダ, ケイゾウ
  • Wada, Keizo
著者
森本, 雅俊
著者別名
  • モリモト, マサトシ
  • Morimoto, Masatoshi
著者
阿部, 光伸
著者別名
  • アベ, ミツノブ
  • Abe, Mitsunobu
著者
髙田, 洋一郎
著者別名
  • タカタ, ヨウイチロウ
  • Takata, Yoichiro
著者
酒井, 紀典
著者別名
  • サカイ, トシノリ
  • Sakai, Toshinori
著者
福井, 義浩
著者別名
  • フクイ, ヨシヒロ
  • Fukui, Yoshihiro
著者
西良, 浩一
著者別名
  • サイリョウ, コウイチ
  • Sairyo, Koichi
学位授与大学
徳島大学
取得学位
博士(医学)
学位授与番号
甲医第1418号
学位授与年月日
2019-03-22

説明

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.

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