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TITLE:

ANALYSIS OF DIAGNOSTIC ACCURACY OF COMPUTED TOMOGRAPHY FOR ACUTE APPENDICITIS PATIENTS

AUTHORS:

Dr Maria Naseer, Dr Bilal Waheed, Dr Abira Khan

ABSTRACT:

Introduction: Appendix is a small pouch attached to the beginning of large intestine. Appendicitis, an inflammation of the appendix, is the most common acute surgical condition of the abdomen. Almost 10% of the general population develops acute appendicitis with maximal incidence in the second and third decades of life. Objective: To determine diagnostic accuracy of computed tomography in the diagnosis of acute appendicitis patients. Materials and Methods: This study was conducted in the in Jinnah Hospital, Lahore in November 2017 till April 2018. Through a Descriptive Cross-Sectional Study Design, a total of 191 patients suspected of having acute appendicitis were included in the study in a consecutive manner and subjected to CT pre-operatively and histopathology post operatively for the acute appendicitis. Results: The mean age of the patients was 29.5 + 6.7 years. We had 53.4% males & 46.6% females. On CT we observed that the acute appendicitis was recorded in 58.1% of patients compared to 47.6% on histopathology. On applying the formulae for calculation, sensitivity of CT was found to be 89% and specificity 70%. The positive predictive value of the CT is 72.9% and negative predictive value is 87.5%. Conclusion: It is concluded that CT is a highly sensitive and specific tool for the detection of acute appendicitis. As such, it is a useful radiological marker for diagnosis of acute appendicitis in adults and further studies are recommended to confirm its usefulness.

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