RESUMO
Chest X-ray [CXR] is the simplest diagnostic tool of Community Acquired Pneumonia [CAP], but it has some limitation. Therefore, the aim of this study is comparing the diagnostic accuracy of CXR and chest ultra-sonography [CUS] in detection of CAP. In the present study, a consecutive sample of suspected patients with CAP was underwent CUS, CXR, and chest computed tomography [CT] scan. Diagnostic accuracy of CUS and CXR was assessed by calculating the sensitivity, specificity, predictive values, and likelihood ratios using SPSS 20 statistical software. 30 patients with CAP were enrolled [93.3% male with mean age of 63.8 +/- 18.3 years]. Sensitivity of CUS and CXR in detection of CAP were 100.0% [95% Cl: 85.4-100.0] and 93.1% [95% Cl: 75.8-98.8], respectively. Specificity of CXR was 0.0 [95% Cl: 0.0-94.5], while the CUS specificity was not calculable. Findings of the present study demonstrated on the higher diagnostic accuracy of CUS versus CXR in detection of pneumonia