Kalokairinou-Motogna Mariana, Maratou Katerina, Paianid Iovana, Soldatos Theodoros, Antipa Elena, Tsikkini Aggeliki, Baltas Christos S
Radiology Imaging Department, General Hospital Sotiria, Terpsitheas 42, 15341, Athens, Greece.
Med Ultrason. 2010 Mar;12(1):12-6.
To compare the results of gray scale ultrasound with those of color Doppler ultrasound in order to evaluate the minimal pleural effusion and to differentiate the minimal pleural effusion from pleural thickening.
We prospectively analyzed 86 patients who, according to their chest radiographs, were suspected of having minimal pleural effusion. All patients were examined by ultrasonography on gray scale and color Doppler and the presence or absence of pleural effusion was confirmed by thorax CT. Using the color Doppler examination we analyzed the fluid color sign of pleural effusion.
In our study, the ultrasonography on gray scale in real time detected pleural effusion with 60% specificity, 100% sensitivity and 88.37% accuracy. By applying the color Doppler the specificity of the method is higher (specificity 100%, sensitivity 96.72% and accuracy 97.57%).
The evidence of pleural effusion on grayscale ultrasound has a greater sensitivity than that of color Doppler ultrasound, but has a smaller specificity. Therefore, color Doppler ultrasound proved to be a useful diagnostic aid in gray-scale ultrasound for the assessment of minimal effusion, having the highest accuracy.
比较灰阶超声与彩色多普勒超声的检查结果，以评估微量胸腔积液，并鉴别微量胸腔积液与胸膜增厚。
我们前瞻性分析了86例根据胸部X线片怀疑有微量胸腔积液的患者。所有患者均接受了灰阶和彩色多普勒超声检查，并通过胸部CT确认是否存在胸腔积液。利用彩色多普勒检查，我们分析了胸腔积液的液性颜色信号。
在我们的研究中，实时灰阶超声检测胸腔积液的特异性为60%，敏感性为100%，准确性为88.37%。应用彩色多普勒时，该方法的特异性更高（特异性100%，敏感性96.72%，准确性97.57%）。
灰阶超声对胸腔积液的诊断具有较高的敏感性，但特异性较低。因此，彩色多普勒超声在灰阶超声评估微量胸腔积液时是一种有用的诊断辅助手段，具有最高的准确性。
