Publication: Accuracy of ultrasonography in the diagnosis of acute appendicitis
Date
2008
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Kathmandu University
Abstract
Abstract
Aims and Objectives: To assess the accuracy of ultrasonography in the diagnosis of acute appendicitis.
Methodology: A prospective randomized study was carried in the Dept. of Radiology and Imaging, Tribhuvan
University, Teaching Hospital, Maharajgunj, Kathmandu, Nepal. A total of 120 patients, who were clinically
diagnosed as acute appendicitis were subjected to ultrasonography of the abdomen. A detailed ultrasonography
was performed and the findings were recorded. Twenty one cases had alternate diagnosis. Ninety nine cases
ultimately underwent laparotomy and the retrieved appendices were sent for histopathological examination.
Intra-operative, histopathological and ultrasonographic diagnoses were then statistically analyzed.
Results: Ultrasonographic, intra-operative and histopathological findings were statistically insignificant
(P≥0.05). The sensitivity, specificity, positive predictive value, negative predictive value and accuracy
percentage of ultrasonography in the diagnosis of acute appendicitis was 85.7%, 100%, 100%, 6.7% and 85.9%
respectively.
Conclusion: Ultrasonography has a high degree of accuracy in the diagnosis of acute appendicitis. However, the
diagnosis should be considered with the diameter of appendix over 6 mm. Therefore acute appendicitis with
diameter of appendix having less than 6 mm should be evaluated with other diagnostic parameters.
Key words: Acute Appendicitis, Ultrasonography.
Description
Khanal BR, Ansari MA, Pradhan S
Department of Radiology and Imaging, Tribhuvan University Teaching Hospital, Maharajgunj, Kathmandu, Nepal.