Staff are exposed to radiation in the scanning room when assisting with CT scans of patients requiring ventilatory support during procedures. We measured lens doses using a phantom during a high-energy trauma protocol. Dosimetry showed that the unprotected lens received 2.02 mGy on the right and 1.91 mGy on the left, which are not negligible doses. Respective exposures to the right and left lens were 53.6% and 55.1% when wearing 0.07 mm Pb protective glasses with side covers; 53.7% and 64.2% when wearing 0.7 mm Pb glasses without side covers when facing away from the patient couch; and 92.1% and 91.2% using protective shielding in the gantry. Since the face direction may change during assistance with CT imaging, it is desirable that the protective glasses have a shape with a side cover. The protective shielding had a major radiation reduction effect, although it is expensive to acquire, install, and maintain.

中文翻译：

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高能创伤 CT 成像期间助理人员辐射防护方法的评估：具有体模研究的晶状体剂量测定。

工作人员在扫描室协助对在手术过程中需要通气支持的患者进行 CT 扫描时会受到辐射。我们在高能创伤方案中使用体模测量晶状体剂量。剂量测定显示，未受保护的晶状体在右侧接受了 2.02 mGy，在左侧接受了 1.91 mGy，这是不可忽略的剂量。配戴0.07mm带侧盖铅防护眼镜时，左右镜片的曝光率分别为53.6%和55.1%；背对患者沙发时，佩戴 0.7 毫米无侧盖的铅眼镜时分别为 53.7% 和 64.2%；92.1% 和 91.2% 在龙门架中使用防护罩。由于在辅助CT成像期间面部方向可能发生变化，因此期望防护眼镜具有具有侧盖的形状。