Novel Protective Lead Shield and Pulse Fluoroscopy can Reduce Radiation Exposure during the ERCP Procedure
Novel Protective Lead Shield and Pulse Fluoroscopy can Reduce Radiation Exposure during the ERCP Procedure
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DOI：
10.5754/hge11764
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发表时间：
2012-05-01
影响因子：
--
通讯作者：
Moriyasu, Fuminori
中科院分区：
文献类型：
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作者：
Kurihara, Toshio;Ito, Takao;Moriyasu, Fuminori
背景/目标：ERCP 相关手术涉及患者和医务人员的辐射暴露。我们开发了一种新型保护性铅屏蔽，它安装在荧光镜发生器周围。在这里，我们检查患者、内窥镜医师和助手的辐射暴露水平，并评估新设计的防护罩的实用性。方法：从2006年4月到2007年4月，进行了471例ERCP手术。首先，我们比较了连续透视条件下的辐射剂量与每秒15次的脉冲透视，然后比较了有和没有防护罩的辐射剂量。接下来，我们在 ERCP 手术期间测量了数字剂量计监测的临床环境中内窥镜医师和助理的辐射暴露量。结果：45方向辐射剂量最大。使用每秒 15 次的脉冲透视，患者和内窥镜医生的辐射剂量减少了约一半。结合使用每秒15次的脉冲透视和防护罩，内镜医师位置的辐射剂量减少了97%。 471 例 ERCP 病例中总透视时间为 5851 分钟。使用脉冲15和防护铅屏蔽，一名内窥镜医生和两名助手的辐射暴露剂量分别为2430.8、2673.9和1375.0μSv。结论：新型防护铅屏蔽结合脉冲透视可以显着减少辐射暴露，避免患者和医务人员不必要的辐射暴露。
Background/Aims: ERCP-related procedures involve radiation exposure of patients and medical staff. We developed a novel protective lead shield which is attached around the fluoroscopy generator. Here we examine levels of radiation exposure to patients, endoscopists and assistants, and evaluate the usefulness of the newly designed protective shield. Methodology: Four-hundred and seventy-one ERCP procedures were performed from April 2006 to April 2007. At first, we compared the radiation dose of consecutive fluoroscopy conditions with pulse fluoroscopy of 15 per second and then the radiation dose with and without the protective shield. Next, we measured the radiation exposure of endoscopists and assistants in the clinical setting monitored by digital dosimeter during ERCP procedure. Results: The radiation dose was the most at the 45 direction. Using pulse fluoroscopy of 15 per second the radiation dose of patients and endoscopists decreased by about half. Using both pulse fluoroscopy of 15 per second and the protective shield, the radiation dose at the endoscopist's position was reduced up to 97%. The total fluoroscopy time was 5851 minutes in the 471 ERCP cases. Using pulse 15 and the protective lead shield, the radiation exposure dose of one endoscopist and two assistants were 2430.8, 2673.9 and 1375.0 mu Sv, respectively. Conclusions: Novel protective lead shield in combination with pulse fluoroscopy can significantly reduce the radiation exposure leading to avoid unnecessary radiation exposure to patients and medical staff.