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Acute appendicitis is one of the most common surgical abdominal emergencies where timely intervention and correct diagnosis plays a crucial role in reduction of morbidity and mortality. Ultrasound remains one of the best imaging modality in diagnosis of cases for acute appendicitis in typical cases. Present study was aimed mainly to determine the sensitivity and specificity of ultra sonogram in diagnostic accuracy of cases of acute appendicitis. Material and methods: A prospective study for one year was conducted after ethics approval among all the cases suspected with acute appendicitis. Diagnostic ultrasound was performed on the cases and operated. The findings of the ultrasonogram were compared with Histopathological report. The sensitivity, specificity, positive and negative predictive value of ultrasonogram was evaluated. Chi-Square test was done to determine the significance between the groups and p value <0.05 was considered significant. Results: 125 cases were enrolled with males 56% and females 44%. Mean age of the study group was 31.21± 2.8 years. 84% were confirmed as histopathological positive, 94 cases were positive by diagnostic ultrasound. Negative appendectomy rate was 4.8%. The total rate of false diagnosis by ultrasound was 13.6%. The positive predictive value was 94% and negative predictive value was 56% in the present study. Discussion: High resolution sonography with graded compression is a very promising examination in diagnosis of acute appendicitis in problem cases and in women of reproductive age group. Present study suggests always a closer interaction between sonologists and surgeons in arriving at a correct diagnosis.

international journal of contemporary medicine surgery and radiology

A Prospective Study to Determine Sensitivity and Specificity of Ultrasonogram in Diagnosis of Acute Appendicitis: Comparison with Histopathology Report