Is ultrasonography or computed tomography more accurate in diagnosing adults with suspected appendicitis? A systematic review

Hadadi, Ibrahim (2017) Is ultrasonography or computed tomography more accurate in diagnosing adults with suspected appendicitis? A systematic review. Masters thesis, Leeds Institute of Cardiovascular and Metabolic Medicine.

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Abstract|ملخص البحث

Objective: The study objective was to conduct a systematic review to compare the accuracy of ultrasonography (US) and computed tomography (CT) in the diagnosis of acute appendicitis in adults. The current reference standard for diagnosis of appendicitis was histopathology and surgery. Methods: A search, restricted to studies published from 2010 onwards, was performed of Medline, Embase and Google Scholar in July 2017. Backwards and forwards reference list checking was employed to identify studies not recovered during the electronic database search. The title and abstract of each study were scanned and the full text for each included study was evaluated. The methodological quality of the included studies was assessed using the Quality Assessment of Diagnostic Accuracy Studies 2 tool. The study results were synthesised narratively and weighted averages were calculated. Results: Only six of the 83 identified studies were included. According to the weighted averages, CT (95%) was more sensitive than US (75%) in diagnosing acute appendicitis. However, minor variations were observed between US and CT regarding the weighted averages obtained for specificity (82% versus 87%), positive predictive value (PPV) (92% versus 95%) and negative predictive value (NPV) (55% versus 61%). Conclusion: Although CT was superior to US in diagnosing adults with suspected acute appendicitis, the two modalities were comparable in terms of specificity, PPV and NPV. Thus, the use of CT is recommended as a conditional modality. The patients should be referred to CT if the results are negative.

Item Type|تصنيف النتاج العلمي: Thesis | رسالة بحثية (Masters)
Subjects | مجال موضوع النشر: Radiological Sciences
Divisions | الكلية: College of Applied Medical Sciences > Radiological Sciences
Depositing User: 55 55
Date Deposited: 14 Mar 2018 17:10
Last Modified: 14 Mar 2018 17:10
URI: http://eprints.kku.edu.sa/id/eprint/3506

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