基于CT的Node-RADS对于结肠癌的诊断准确性和可靠性
Jakob Leonhardi1, Matthias Mehdorn2, Sigmar Stelzner2
1Department of Diagnostic and Interventional Radiology, University of Leipzig, Leipzig, Germany.
Abdominal radiology (New York)
|July 8, 2024
概括
使用CT扫描进行结肠癌淋巴结的分期的Node-RADS分类显示了有限的准确性. 高度的互读者变异性表明在广泛临床使用之前需要谨慎.
科学领域:
- 瘤成像学成像学
- 放射学 放射学是一门学科.
- 胃肠道瘤学 胃肠道瘤学
背景情况:
- 节点-RADS分类系统有助于在瘤成像中表征淋巴结.
- 精确的淋巴结分期对于有效的结肠癌治疗计划至关重要.
研究的目的:
- 通过使用计算机断层扫描 (CT) 评估Node-RADS分类对结肠癌患者淋巴结分期的诊断效用.
主要方法:
- 从108名结肠癌患者手术切除的淋巴结组织病理学分析.
- 用两个经验丰富的放射科医生的Node-RADS分类进行淋巴结评分.
- 评估读者之间的变性 (科恩的卡帕),歧视 (曼-惠特尼-U测试) 和诊断准确性 (ROC曲线分析).
主要成果:
- 节点-RADS评分显示了N-和N+阶段之间的统计学上显著差异 (p=0.001).
- 接收器运行特征 (ROC) 曲线分析得出曲线下的面积 (AUC) 为0.68.
- 值为2为淋巴结歧视提供了0.62的灵敏度和0.71的特异性.
结论:
- 当应用到分期CT扫描时,Node-RADS分类对预测结节阳性在结肠癌中的诊断准确性有限.
- 在这项研究中观察到的高互读器变异性引发了人们对Node-RADS在结肠癌分期的临床适用性的担忧.
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