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Statistical methods such as Chi-square (<jats:italic>\u03c7<\/jats:italic><jats:sup>2<\/jats:sup>), <jats:italic>t<\/jats:italic>-tests, Principal component analysis (PCA), Binary Logistic regression (LR) and Factor Analysis (FA) were utilized to observe differences and isolate recognizable CT features of SAA. Pre and post hoc diagnostic performance of all criteria was calculated as sensitivity, specificity, and the Odds Ratio (OR).<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Results<\/jats:title>\n<jats:p>Age\u2009&gt;\u200950\u00a0years, diameter\u2009&gt;\u200913\u00a0mm, pneumatosis, peri appendiceal abscess, focal wall defect, perforation; Orbital, linear and point types of appendicular wall calcifications; sigmoid colon and cecal curvilinear calcifications were observed as unique characteristics with a sensitivity of 84\u201395% and specificity of 91\u201398% in predicting SAA by OR of 6.2 times. Pre and post hoc hypothetical analysis did not show any significance for all other factors.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Conclusion<\/jats:title>\n<jats:p>Factors such as elderly age, CT features such as larger appendicular diameter, appendicular wall calcifications along with sigmoid colon, and cecal calcifications, signs of perforation or abscess are characteristic for early recognition of SAA.<\/jats:p>\n<\/jats:sec>","DOI":"10.1007\/s11604-019-00905-4","type":"journal-article","created":{"date-parts":[[2019,12,10]],"date-time":"2019-12-10T18:03:53Z","timestamp":1576001033000},"page":"178-191","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Analysis of CT characteristics in the diagnosis of Schistosoma japonicum associated appendicitis with clinical and pathological correlation: a diagnostic accuracy study"],"prefix":"10.1007","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3234-2155","authenticated-orcid":false,"given":"Bimbadhar","family":"Valluru","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2537-9809","authenticated-orcid":false,"given":"Zhou","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5945-0319","authenticated-orcid":false,"given":"Dineswar","family":"Sah","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0317-2196","authenticated-orcid":false,"given":"Wei","family":"Du","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7521-5685","authenticated-orcid":false,"given":"Mahamed O.","family":"Ali","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8068-9930","authenticated-orcid":false,"given":"Ahmed A.","family":"Adam","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4511-4779","authenticated-orcid":false,"given":"Liang","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6215-6428","authenticated-orcid":false,"given":"Juan J.","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2019,12,10]]},"reference":[{"issue":"5","key":"905_CR1","doi-asserted-by":"publisher","first-page":"445","DOI":"10.1016\/j.jare.2012.12.001","volume":"4","author":"T Elbaz","year":"2013","unstructured":"Elbaz T, Esmat G. 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