Determination of Sensitivity and Specificity of Ultrasonography Compared with CT-Scan in Diagnosis of Free Abdominal Fluid in Patients with Blunt Abdominal Trauma Admitted to Zahedan Khatam-al-anbia H

Background/Objective: Nowadays, trauma is the fourth cause of mortality and morbidity in developed countries. Intraabdominal hemorrhage due to blunt abdominal trauma is the major cause of these mortalities. Therefore, every action taken for quick diagnosis of intraabdominal hemorrhage could save the lives of patients more effectively."nPatients and Methods: This cross-sectional study concerns patients with blunt abdominal trauma admitted to the emergency of Khatam-al-anbia Hospital in a one-year period from 1385. Information from ultrasonography and CT scan were registered in a questionnaire and analyzed by statistical software SPSS 14. We used sensitivity, specifity, positive predictive value, negative predictive value and accuracy as statistical tools for comparison."nResuIts: Of the 100 patients surveyed, 20% were female and 80% were male. The most common clinical symptoms in both groups were abdominal pain and then abdominal tenderness. There was significant statistical difference between clinical symptoms from the point view of existing free abdominal fluid and CT-scan report (P =0.017). The sensitivity, specificity, negative predictive value and positive predictive value of ultrasonography in the diagnosis of free abdominal fluid were respectively, 84%, 86%, 91% and 75%, which were respectively, 54%, 90%, 65% and 79% in the diagnosis of intra abdominal damage. "nConclusion: Ultrasonography has sensitivity, specificity and enough accuracy to detect free abdominal fluid in blunt abdominal trauma in comparison with CT-scan in the children's and adult's age group which if combined with abdominal viscera parenchymal abnormalities, these parameters would sensitively increase in the children's age group."nKeywords: CT Scan, Ultrasonography, Abdominal Blunt Trauma, Sensitivity, Specificity