COMPARING THE DIAGNOSTIC ACCURACY OF CT AND USG IN THE DIAGNOSIS OF ACUTE APPENDICITIS
Journal Title: Stanley Medical Journal - Year 2016, Vol 3, Issue 3
Abstract
Aim: To evaluate the accuracy of CT and USG in the diagnosis of acute appendicitis in patients who are taken for appendectomy. Study design: Prospective study. Materials and method:Patients who were admitted in the casuality surgical emergency ward within the age of 15- 45 ,who presented with clinical findings and symptoms of acute appendicitis of right iliac fossa pain ,fever and vomiting were enrolled in the study. A total study sample of 100 was selected. Patient were subjected to both the investigations USG and CT findings are recorded .Surgical and histopathology findings were noted and compared with the radiological reports. The sensitivity, specificity and the diagnostic accuracy were calculated. Results:The study showed a CT sensitivity of 97%,specificity of 89%,positive predictive value of 99% and negative predictive value of 73%. USG showed a sensitivity of 92% and specificity of 78%, PPV-98% and NPV- 50%. All the value has a confidence interval of 95% . Conclusion:From the study it is concluded that CT is superior in all aspects of sensitivity, specificity, PPV and NPV than USG. Hence the CT investigation is more accurate than USG in diagnosing cases of appendicitis.
Authors and Affiliations
Geetha G, Ramesh D, Kailasanathan N
Keywords
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