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在光学指导干预期间,操作者内剂量保护

Emmad Qazi¹, Ali Ursani², Neeral Patel²

¹Department of Vascular and Interventional Radiology, Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, 200 Elizabeth St, Toronto, ON, M5G 2C4, Canada. emmad.qazi@mail.utoronto.ca.

Cardiovascular and interventional radiology

|June 6, 2023

概括

个人防护设备在光镜检查期间显著降低了操作员内辐射剂量. 头骨和软组织提供了大量的自然屏蔽,具有特殊的防护装备,可以在各种投射处进一步降低剂量.

科学领域:

医学物理医学物理
辐射保护辐射保护
生物医学工程生物医学工程

背景情况:

光镜程序使操作人员暴露在电离辐射中.
保护头部,特别是大脑免受辐射,对于操作员的安全至关重要.
了解个人防护设备 (PPE) 在降低内辐射剂量的有效性至关重要.

研究的目的:

量化不同个人防护设备 (PPE) 对操作员内辐射吸收剂量的影响.
评估头骨和软组织提供的自然衰减.
为了比较不同光镜投射角度的辐射剂量.

主要方法:

使用了一个带有人类头骨和模拟软组织的类人形幻影.
在头骨内外放置了辐射探测器.
在AP,RAO和LAO预测中,使用和不使用各种PPE进行了光镜曝光.

主要成果:

头骨和软组织减少了76%的内辐射.
左前斜 (LAO) 和右前斜 (RAO) 投影导致操作人员的辐射暴露高于前后斜 (AP) 投影.
所有经过测试的个人防护设备都证明了对内辐射的减少,盖帽和全罩提供了最重要的保护.

结论:

头骨和软组织本质上减弱了大量的内辐射.
所有评估的PPE在光镜检查期间都提供了额外的内保护.
投射角度的选择显著影响操作员的辐射剂量,LAO和RAO风险更高.

关键词:

内辐射保护内辐射保护有的帽子可以封闭.有的玻璃杯.个人防护设备个人防护设备辐射保护设备的辐射保护设备甲状腺项圈是一个甲状腺项圈.

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