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首页> 外文期刊>Ultrasound in Medicine and Biology >Interobserver agreement in diagnosing liver involvement in hereditary hemorrhagic telangiectasia by Doppler ultrasound.
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Interobserver agreement in diagnosing liver involvement in hereditary hemorrhagic telangiectasia by Doppler ultrasound.

机译：通过多普勒超声诊断遗传性出血性毛细血管扩张涉及肝脏的观察者间协议。

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摘要

The purpose was to evaluate interobserver agreement on Doppler ultrasonographic (US) diagnosis of liver vascular malformations (VMs) in hereditary hemorrhagic teleangiectasia (HHT) and on their severity grading. During the interobserver agreement study, three observers with at least seven years of specific experience using Doppler US for the diagnosis of liver VMs, judged about the presence/absence of liver VMs and their severity on a set of images and videoclips. Interobserver agreement was estimated with kappa statistics. One-hundred ten cases were reviewed during interobserver study (80 cases with liver VMs, 30 without). Very good kappa values of the interobserver agreement were found for all pairs concerning the distinction between presence and absence of hepatic VMs. All observers demonstrated excellent sensitivity and specificity in identifying hepatic VMs, with their respective areas under the curve ranging from 0.97 to 0.99. Interobserver agreement among the three investigators in staging the hepatic VMs in HHT patients was moderate (Kendall's coefficient of concordance = 0.26). Study results indicate that Doppler US diagnosis of liver VMs in HHT has a high degree of agreement among ultrasonographers; a moderate agreement was found regarding severity staging.
机译：目的是评估多普勒超声（US）诊断遗传性出血性远距毛细血管扩张（HHT）的肝血管畸形（VMs）及其严重程度分级的观察者之间的一致性。在观察者之间的协议研究中，三名具有多普勒超声至少七年经验的观察员使用多普勒超声诊断肝VM，并根据一组图像和视频剪辑判断了肝VM的存在与否及其严重性。观察员之间的协议是通过kappa统计数据估算得出的。观察者间研究期间回顾了一百零十例病例（其中80例伴有肝VM，30例不伴有肝VM）。对于所有关于存在与不存在肝VM的区别的观察者，发现了观察者间协议的非常好的κ值。所有观察者均表现出出色的灵敏度和特异性，可识别肝VM，其曲线下面积分别为0.97至0.99。三名研究者在HHT患者肝VM分期中的观察员之间的共识是中等的（肯德尔一致性系数= 0.26）。研究结果表明，多普勒超声对HHT肝VM的诊断在超声检查人员中具有高度一致性。在严重程度分级方面发现了中等程度的共识。

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