Comparision of diagnostic value of ultrasound with chest CT Scan in patients with unspecified pulmonary pneumonia in emergency department

Abstract

Due to the importance of rapid diagnosis of pneumonia in patients with chronic disease and the availability of ultrasound in this study, the diagnostic value of lung bedside ultrasound in the diagnosis of pneumonia in patients with unspecified pulmonary pneumonia referred to the emergency department of Imam Reza (AS) Hospital in Tabriz in 1999 Has been.

Methods: In this prospective descriptive-analytic study, 175 patients referred to the emergency department with symptoms of shortness of breath and cough indicating chest CT scan were included in the study as available to complete the sample size. In this descriptive analytical mirror study, CT scan was used as the gold standard of diagnosis. In order to study, all patients with the initial diagnosis of pneumonia who could not be sent for chest x-ray and CT due to their acute condition were first subjected to chest ultrasound by a skilled emergency medicine specialist. A CT scan of the lungs was then performed. Finally, the collected data were analyzed using a researcher-made and reliable questionnaire using Chi-square, Rock Crow, etc.

Results: The mean (standard deviation) age of the patients was 64.86 years (8.05). 60% (105 patients) of the patients in the study were male and 40% (70 patients) were female. The initial diagnosis was 59.43% of people with Pneumonia and 13.14% with asthma, 10.86% with pulmonary edema, 8.57% with COPD and 8% with pneumothorax. 54.86% of the patients were finally discharged, 33.71% of them were hospitalized, 6.86% of them died and finally 4.57% of them were sent. The sensitivity of sonography in the diagnosis of subpleural consolidation was 94.1%, specificity was 100%, positive predictive value was 100% and negative predictive value was 33.3%. Ultrasound in the diagnosis of pleural effusion had a sensitivity of 69.2%, specificity of 100%, positive predictive value of 100%, and negative predictive value of 90.7%. And the sensitivity of ultrasound in diagnosing Dynamic Air Bronchogram in patients with pneumonia was 98%.