{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T12:58:31Z","timestamp":1740142711951,"version":"3.37.3"},"reference-count":21,"publisher":"FapUNIFESP (SciELO)","issue":"4","license":[{"start":{"date-parts":[[2019,8,1]],"date-time":"2019-08-01T00:00:00Z","timestamp":1564617600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2019,8,1]],"date-time":"2019-08-01T00:00:00Z","timestamp":1564617600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2019,8,1]],"date-time":"2019-08-01T00:00:00Z","timestamp":1564617600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Radiol Bras"],"abstract":"<jats:p>Abstract  Objective: To evaluate the correlation of morphological criteria of the cecal appendix using computed tomography (CT) and the possible risk of developing acute appendicitis.  Materials and Methods: Cases were defined as patients with surgically confirmed acute appendicitis who had undergone CT at least twice: at diagnosis and at least one month prior. Controls were defined as emergency patients with abdominal pain who had undergone abdominal CT that excluded acute appendicitis and had also undergone CT at least one month before.  Results: 100 cases and 100 controls were selected for inclusion in the final analysis. Comparisons between the cases and controls revealed the following: mean transverse diameter of 0.6 cm (range, 0.4-1.0 cm) versus 0.6 cm (range, 0.6-0.8 cm; p = 0.37); mean length of 6.6 cm (range, 3.5-9.7 cm) versus 6.6 cm (range, 4.5-8.3 cm; p = 0.87); mean angle of 100\u00b0 (range, 23-178\u00b0) versus 86\u00b0 (range, 43-160\u00b0; p = 0.01); vertical descending orientation in 56% versus 45% (p = 0.2); absence of gas in 69% versus 77% (p = 0.34); and presence of an appendicolith in 17% versus 8% (p = 0.08).  Conclusion: Hypothetical risk factors for obstruction of the vermiform appendix detected on CT were not associated with acute appendicitis. That suggests that factors other than those related to mechanical obstruction are implicated in the pathogenesis of acute appendicitis.<\/jats:p>","DOI":"10.1590\/0100-3984.2018.0118","type":"journal-article","created":{"date-parts":[[2019,6,26]],"date-time":"2019-06-26T19:19:51Z","timestamp":1561576791000},"page":"217-221","source":"Crossref","is-referenced-by-count":1,"title":["Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis"],"prefix":"10.1590","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5191-772X","authenticated-orcid":false,"given":"Amanda Chambi","family":"Tames","sequence":"first","affiliation":[{"name":"Hospital Israelita Albert Einstein,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4633-3711","authenticated-orcid":false,"given":"Fernando Ide","family":"Yamauchi","sequence":"additional","affiliation":[{"name":"Hospital Israelita Albert Einstein,  Brazil; Universidade de S\u00e3o Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0649-3662","authenticated-orcid":false,"given":"Adham do Amaral e","family":"Castro","sequence":"additional","affiliation":[{"name":"Hospital Israelita Albert Einstein,  Brazil; Universidade Federal de S\u00e3o Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2003-8116","authenticated-orcid":false,"given":"Caroline Duarte de Mello","family":"Amoedo","sequence":"additional","affiliation":[{"name":"Hospital Israelita Albert Einstein,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5542-4527","authenticated-orcid":false,"given":"Ellison Fernando","family":"Cardoso","sequence":"additional","affiliation":[{"name":"Hospital Israelita Albert Einstein,  Brazil; Universidade de S\u00e3o Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8762-0875","authenticated-orcid":false,"given":"Ronaldo Hueb","family":"Baroni","sequence":"additional","affiliation":[{"name":"Hospital Israelita Albert Einstein,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2282-2892","authenticated-orcid":false,"given":"Adriano","family":"Tachibana","sequence":"additional","affiliation":[{"name":"Hospital Israelita Albert Einstein,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2019,8]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1016\/j.yasu.2017.03.002","article-title":"Can the diagnosis of appendicitis be made without a computed tomography scan","volume":"51","author":"Yu YR","year":"2017","journal-title":"Adv 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acute diverticulitis of the colon","volume":"50","author":"Naves AA","year":"2017","journal-title":"Radiol Bras"},{"key":"ref13","doi-asserted-by":"crossref","first-page":"318","DOI":"10.1016\/j.jemermed.2016.07.101","article-title":"Predictors of nondiagnostic ultrasound for appendicitis","volume":"52","author":"Keller C","year":"2017","journal-title":"J Emerg Med"},{"key":"ref14","doi-asserted-by":"crossref","first-page":"125","DOI":"10.1007\/s10140-012-1093-5","article-title":"Significance of size and location of appendicoliths as exacerbating factor of acute appendicitis","volume":"20","author":"Ishiyama M","year":"2013","journal-title":"Emerg Radiol"},{"key":"ref15","doi-asserted-by":"crossref","first-page":"422","DOI":"10.1016\/S0899-7071(03)00286-9","article-title":"Evaluation of perforated and nonperforated appendicitis with CT","volume":"28","author":"Yeung KW","year":"2004","journal-title":"Clin 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appendectomy in childhood obesity","volume":"26","author":"Kutasy B","year":"2010","journal-title":"Pediatr Surg Int"},{"key":"ref20","doi-asserted-by":"crossref","first-page":"1278","DOI":"10.1016\/S0140-6736(15)00275-5","article-title":"Acute appendicitis: modern understanding of pathogenesis, diagnosis, and management","volume":"386","author":"Bhangu A","year":"2015","journal-title":"Lancet"},{"key":"ref21","article-title":"Diagnostic value of C-reactive protein and the influence of visceral fat in patients with obesity and acute appendicitis","volume":"31","author":"Castro ADAE","year":"2018","journal-title":"Arq Bras Cir Dig"}],"container-title":["Radiologia Brasileira"],"original-title":["Crit\u00e9rios morfol\u00f3gicos do ap\u00eandice cecal na tomografia computadorizada e poss\u00edvel risco de desenvolver apendicite aguda"],"link":[{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_pdf&pid=S0100-39842019000400217&tlng=en","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,7,26]],"date-time":"2022-07-26T19:46:17Z","timestamp":1658864777000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S0100-39842019000400217&tlng=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,8]]},"references-count":21,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2019,8]]}},"alternative-id":["S0100-39842019000400217"],"URL":"https:\/\/doi.org\/10.1590\/0100-3984.2018.0118","relation":{},"ISSN":["1678-7099"],"issn-type":[{"type":"electronic","value":"1678-7099"}],"subject":[],"published":{"date-parts":[[2019,8]]}}}