彩色多普勒超声与胸部DR在肺炎诊断中的价值比较及肺炎声像特征

发布时间：2018-08-21 11:15

【摘要】：目的:比较彩色多普勒超声和胸部DR诊断肺炎的价值,了解肺炎声像特征。方法:纳入48例疑似肺炎病例作为研究对象,以16排螺旋CT为影像学金标准,分析彩色多普勒超声和胸部DR诊断肺炎的评价指标,并总结肺炎病灶声像。结果:彩色多普勒超声诊断肺炎的灵敏度为90.5%、特异度为66.7%,胸部DR诊断肺炎的灵敏度为95.2%、特异度为50.0%。二者灵敏度和特异度比较差异均无统计学意义(灵敏度χ2=0.72,P0.05;特异度χ2=0,P0.05)。彩色多普勒超声和胸部DR诊断肺炎的观察一致率(Po)为85.4%,机遇一致率(Pc)为68.2%,观察一致率机遇一致率,Kappa值为0.54。38例肺炎共41个病灶,其中35个病灶表现为实变,呈低回声或等回声,6个病灶表现为B线,为垂直于胸膜的放射状强回声。34个病灶合并少量胸膜腔积液。结论:肺炎声像有一定特征,可为诊断提供有价值的信息。彩色多普勒超声与胸部DR诊断肺炎的水平相当,诊断一致率较高且证实肺炎的能力较强,可考虑应用于临床部分患者,有助于减少其辐射暴露。
[Abstract]:Objective: to compare the value of color Doppler ultrasonography (CDFI) and chest Dr in the diagnosis of pneumonia. Methods: a total of 48 suspected pneumonia cases were included as the study subjects. 16-slice spiral CT was used as the imaging gold standard to analyze the diagnostic indexes of pneumonia by color Doppler ultrasound and chest Dr, and to summarize the sonographic features of the focus of pneumonia. Results: the sensitivity and specificity of color Doppler ultrasound in the diagnosis of pneumonia were 90.5 and 66.7 respectively. The sensitivity of chest Dr in diagnosing pneumonia was 95.2 and the specificity was 50.0. There was no significant difference in sensitivity and specificity between the two groups (蠂 ~ 2 / 0.72 P _ (0.05); 蠂 ~ (2 / 2) P ~ (0 / 0) P ~ (0.05). The (Po) and (Pc) were 85.4 and 68.2, respectively. The rate of coincidence was 0.54.38 cases of pneumonia with 41 lesions, 35 of which showed solid change. The lesions were hypoechoic or isoechoic, and 6 lesions showed B-line, which were radially hyperechoic perpendicular to the pleura. 34 lesions were accompanied with a small amount of pleural effusion. Conclusion: the sonographic features of pneumonia can provide valuable information for diagnosis. The level of diagnosis of pneumonia by color Doppler ultrasound is similar to that of chest Dr, and the diagnostic consistency rate is high and the ability to confirm pneumonia is strong. It can be considered to be used in clinical patients, which is helpful to reduce radiation exposure.
【作者单位】：广州医科大学;广州医科大学附属广州市第一人民医院超声科;
【分类号】：R445.1;R563.1

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