肺癌治疗后腹部CT的附加值
Yunjing Zhu1, Jing Liu2, Kai Nie1
1Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Quantitative imaging in medicine and surgery
|August 11, 2025
概括
常规的腹部计算机断层扫描 (CT) 扫描可以帮助早期检测远程肺癌转移. 这一策略可以通过为高风险患者提供及时治疗来改善生存率.
科学领域:
- 在瘤学瘤学.
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 肺癌的存活率很低,特别是在远程转移的情况下.
- 早期检测转移对于及时治疗干预至关重要.
- 腹部CT扫描可以在高风险肺癌患者中发现肺外和腹部转移.
研究的目的:
- 评估额外的腹部CT扫描在识别肺癌患者治疗后肺外和腹部转移的有效性.
- 分析与肺外和隔离腹部转移相关的风险因素.
主要方法:
- 在2015-2017年间对396名肺癌患者进行了回顾性分析.
- 卡普兰-梅尔分析转移率和日志级别测试进行比较.
- 考克斯比例危险模型用于识别风险因素.
- 对腹部CT扫描进行辐射剂量评估 (CTDIvol,DLP,ED).
主要成果:
- 3年累计发病率:28.3%的肺外转移,11.4%的隔离腹部转移.
- 肺外转移的危险因素:组织学亚型,T阶段,淋巴结转移,瘤大小.
- 孤立腹部转移的危险因素:组织学亚型,T阶段,淋巴结转移,ALK突变,SCC抗原,瘤大小.
- 腹部CT的有效辐射剂量:7.2±3.5mSv (没有对比度),18.2±6.9mSv (增强对比度).
结论:
- 腹部CT扫描可以成为检测肺癌远端转移的宝贵工具.
- 将腹部CT纳入随访方案可以改善转移的早期检测和管理.
- 这种方法有望提高高风险肺癌患者的生存率.
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