日本消化器病学会 アーカイブシステム

セッション情報 ポスターセッション(消化器内視鏡学会)

肝・胆道その他3
タイトル 内P-637：

Radiation Exposure to Personnel during ERCP: Efficacy of Self-designed Protective Shield
演者 B.-K.　Son（Department of Internal Medicine, Eulji University）
共同演者 J.-H.　Lee（Department of Internal Medicine, Eulji University）, S.-B.　Ahn（Department of Internal Medicine, Eulji University）, Y.-K.　Cho（Department of Internal Medicine, Eulji University）, S.-H.　Kim（Department of Internal Medicine, Eulji University）, Y.-J.　Jo（Department of Internal Medicine, Eulji University）, Y.-S.　Park（Department of Internal Medicine, Eulji University）
抄録 Background: ERCP using fluoroscopy should be practiced with adequate radiation protection. Individual protective devices can't protect entire body from radiation. This study was planned to investigate personnel's radiation doses obtained from ERCP, and the efficacy of the self-designed lead window shield.Methods: We made a 2mmPb plate shield with 0.5mmPb window on its upper part. This wheeled protective shield was placed between the patient and practitioners while fluoroscopy was working. 123 patients undergoing ERCP between April 2010 and December 2010 were enrolled. Radiation doses were monitored quarterly by dosimeters worn at inside and outside of window shield, neck of endoscopist, and chest of endoscopist and assistant.Results: Mean fluoroscopy time was 171 seconds. Mean number of digital radiographs per procedure were 3.5. The radiation doses of inside and outside of lead window were 6.85 vs 0.09mSv, 7.62 vs 0.17mSv, and 8.82 vs 0.31mSv in every three quarter, respectively. Self-desined shield reduced the radiation exposure significantly. (p<0.001)There was no significant radiation doses' difference between in neck level of endoscopist and in chest level of endoscopist and assistant. Conclusion: Radiation dose to Endoscopist from ERCP exceeded 20mSv per annum. It suggested Endoscopist may be exposed to significant values of radiation from ERCP without shield. Our self-designed protective lead shield can significantly reduce personnel's radiation exposure.
索引用語 ERCP, Radiation