Sun Qing-Ting, Fan Yi-Han, Liang Bao-Hui
School of Medical Imaging, Bengbu Medical University, Bengbu 233000, Anhui Province, China.
World J Radiol. 2025 Jul 28;17(7):107486. doi: 10.4329/wjr.v17.i7.107486.
With the rapid development of computed tomography (CT) technology, the widespread use of CT examinations in the evaluation of chest diseases in pediatrics has raised extensive concerns about radiation issues. This review first systematically summarizes the factors influencing radiation dose (detector, tube voltage, tube current-time product, field of view, and reconstruction algorithms) in pediatric chest computed tomography examinations. Methods to reduce radiation dose are also discussed, including the utilization of filters, automatic tube current modulation, automatic tube voltage selection, and organ dose modulation. Finally, the methods for individualized radiation dose calculation in pediatric chest CT examinations: effective dose, CT dosimetry software, Size-Specific Dose Estimate, and the Monte Carlo method are reviewed. Radiation exposure reduction is a multifaceted issue. This review aims to provide an optimal scanning scheme for pediatric chest CT from different perspectives.
随着计算机断层扫描（CT）技术的快速发展，CT检查在儿科胸部疾病评估中的广泛应用引发了人们对辐射问题的广泛关注。本综述首先系统总结了影响儿科胸部计算机断层扫描检查中辐射剂量的因素（探测器、管电压、管电流-时间乘积、视野和重建算法）。还讨论了降低辐射剂量的方法，包括使用滤过器、自动管电流调制、自动管电压选择和器官剂量调制。最后，综述了儿科胸部CT检查中个体化辐射剂量计算的方法：有效剂量、CT剂量测定软件、特定尺寸剂量估计和蒙特卡罗方法。减少辐射暴露是一个多方面的问题。本综述旨在从不同角度为儿科胸部CT提供最佳扫描方案。
