Abstract

Hand-wrist radiography is the most common and accurate method for evaluating children’s bone age. To reduce the scattered radiation of radiosensitive organs in bone age assessment, we designed a small X-ray instrument with radioprotection function by adding metal enclosure for X-ray shielding. We used a phantom operator to compare the scattered radiation doses received by sensitive organs under three different protection scenarios (proposed instrument, radiation personal protective equipment, no protection). The proposed instrument showed greater reduction in the mean dose of a single exposure compared with radiation personal protective equipment especially on the left side which was proximal to the X-ray machine (≥80.0% in eye and thyroid, ≥99.9% in breast and gonad). The proposed instrument provides a new pathway towards more convenient and efficient radioprotection.

Graphical abstract

中文翻译：

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儿童自屏蔽X射线骨龄评估仪抗散射辐射的体模研究

摘要

手腕X光检查是评估儿童骨龄最常见、最准确的方法。为了减少骨龄评估中放射敏感器官的散射辐射，我们通过添加金属外壳进行X射线屏蔽，设计了一种具有辐射防护功能的小型X射线仪器。我们使用模型操作员来比较敏感器官在三种不同防护场景（建议的仪器、辐射个人防护设备、无防护）下接收到的散射辐射剂量。与辐射个人防护设备相比，所提出的仪器显示单次暴露的平均剂量有更大的降低，特别是在靠近 X 射线机的左侧（眼睛和甲状腺≥80.0％，乳房和性腺≥99.9％） ）。拟议的仪器为更方便、更有效的辐射防护提供了一条新途径。

图形概要