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胸部对比增强CT中中枢淋巴结测量的变化:改变范式的时候了吗?

Alon Olesinksi¹, Richard Lederman², Yusef Azraq²

¹School of Computer Science and Engineering, The Hebrew University of Jerusalem.

Journal of thoracic imaging

|October 17, 2025

概括

中淋巴结尺寸测量显示,放射科医生和自动化方法之间存在很高的一致性. 自动SAL测量从手动划分提供了一个可靠的,节省时间的工具来分类淋巴结扩大.

科学领域:

放射学放射学是一门学科.
医疗成像医学成像
在瘤学瘤学.

背景情况:

准确测量中淋巴结 (LNs) 对于患者的评估至关重要.
短轴长度 (SAL) 在CT扫描上手动测量,SAL≥10毫米表明病理扩大.

研究的目的:

量化手动SAL测量的观察者间一致性和变异性.
为了比较手动的SAL测量与自动计算的SALs从手动的LN划线.
为了确定平均SAL测量误差.

主要方法:

两位放射科医生独立测量了451个LNs的SALs在40个对比增强的胸部CT扫描中.
一位放射科医生还手动划出了LN轮,用于自动化的SAL计算.
使用布兰德-阿尔特曼统计数据来分析测量之间的差异.

主要成果:

放射科医生之间对于正常/扩大LN分类的总体一致性很高 (93.8%).
观察者之间的SAL差异为1.1毫米的协议和3.5毫米的不同意.
手动计算和自动计算SALs之间的一致性为92.7%,类似于观察者之间的变化.

结论:

通过SAL测量来分类中椎下巴神经网络显示出高度一致.
从手动划分来自动计算SAL是一个可靠的,节省时间的工具.
一个三级分类 (正常<8毫米,可能扩大8-12毫米,绝对扩大>12毫米) 是由±2毫米的误差幅度支持的.

关键词:

扩大的和正常的淋巴结分类分类.在中淋巴结中.观察者可变性的变化.短轴测量的测量方法

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