计算机断层扫描的利用和老年人的辐射风险:让我们不要淡化频繁的成像
Grace Pham1, Sophia Hahjean Kim1, Madan M Rehani1
1Massachusetts General Hospital, 55 Fruit Str. Boston, MA, USA.
The British journal of radiology
|March 2, 2026
概括
在老年患者中,计算机断层扫描 (CT) 的使用正在增加,到2035年,预计将有近三分之二的CT用于这个群体. 这一趋势需要对老年人采取谨慎的辐射安全策略.
科学领域:
- 放射学和成像学 放射学和成像学
- 老年医学 老年医学
- 公共卫生 公共卫生
背景情况:
- 计算机断层扫描 (CT) 的利用是现代医学诊断的一个重要方面.
- 了解CT使用中的人口变化对于管理辐射暴露至关重要.
- 老年人群代表着日益增长的人口,医疗保健需求日益增加.
研究的目的:
- 分析老年患者 (≥60岁) 中CT利用的时间趋势.
- 评估老年人与非老年人的复发CT检查频率.
- 评估这些趋势对老年人累积辐射风险的影响.
主要方法:
- 在四级护理学术医院2014-2024年CT考试的回顾性分析.
- 将患者分成各个年龄段的分层,将老年人定义为≥60岁.
- 计算每年CT体积份额和每病人的检查频率,包括高频率使用 (≥2,≥10次检查/年).
- 评估时间趋势使用中心逻辑比转换和线性回归.
主要成果:
- 60-90岁患者的CT从50.4% (2014) 增加到58.3% (2024).
- 老年患者每年接受≥2次检查的比例从25.6%上升到26.6%,而非老年患者的比例则下降.
- 老年患者是接受反复CTs的最大群体,预测到2035年,将占所有CTs的三分之二.
结论:
- 由于人口统计和临床因素,CT成像越来越集中在老年人群中.
- 虽然个人检查辐射风险很低,但老年人的累积暴露需要注意.
- 需要优化,合理的辐射使用策略,以在不断增长的老年患者队列中平衡临床益处与安全.
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