{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T16:38:47Z","timestamp":1773074327639,"version":"3.50.1"},"reference-count":15,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2011,5,4]],"date-time":"2011-05-04T00:00:00Z","timestamp":1304467200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Clinical Ultrasound"],"published-print":{"date-parts":[[2011,7]]},"abstract":"Abstract<\/jats:title>Background.<\/jats:title>To sonographically evaluate the volume of uterine cervix in nonpregnant women with use of the geometric formula for a cylinder and to assess agreement with the reference Virtual Organ Computer\u2010Aided AnaLysis (VOCAL) method.<\/jats:p><\/jats:sec>Methods.<\/jats:title>Three\u2010dimensional ultrasound volume datasets of the uterine cervix from 81 women were obtained prospectively within a 1\u2010year period. Volume measurements were performed using VOCAL and the geometric formula for a cylinder. Reliability was evaluated using intraclass correlation coefficient and Bland\u2010Altman plots were produced to examine intermethod agreement. Time needed to perform measurements was compared with Student's t<\/jats:italic> test.<\/jats:p><\/jats:sec>Results.<\/jats:title>There was good agreement between VOCAL and the geometric formula for a cylinder (mean percentage difference, \u22120.78%; 95% limits of agreement, \u221217.59\u201316.03%). Measurements made by the formula for a cylinder were slightly greater than VOCAL by a mean (\u00b1SE) of 0.78% (\u00b10.95%). A high degree of reliability was observed between the two methods (intraclass correlation coefficient, 0.97; 95%CI, 0.95\u20130.98). Cervical volume estimation with the geometric formula for a cylinder was faster to obtain.<\/jats:p><\/jats:sec>Conclusions.<\/jats:title>This method comparison study shows that the geometric formula for a cylinder has good agreement with VOCAL and can determine the volume of the cervix in a faster way. \u00a9 2011 Wiley Periodicals, Inc. J Clin Ultrasound, 2011<\/jats:p><\/jats:sec>","DOI":"10.1002\/jcu.20833","type":"journal-article","created":{"date-parts":[[2011,5,4]],"date-time":"2011-05-04T16:43:58Z","timestamp":1304527438000},"page":"322-328","source":"Crossref","is-referenced-by-count":11,"title":["Sonographic measurement of cervical volume in nonpregnant women using the geometric formula for a cylinder versus the three\u2010dimensional automated virtual organ computer\u2010aided analysis (vocal)"],"prefix":"10.1002","volume":"39","author":[{"given":"Dimitrios","family":"Papoutsis","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"George","family":"Daskalakis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Angeliki","family":"Antonakou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandros","family":"Rodolakis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Spiridon","family":"Mesogitis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aris","family":"Antsaklis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,5,4]]},"reference":[{"key":"e_1_2_5_2_2","doi-asserted-by":"publisher","DOI":"10.1080\/jmf.13.4.237.241"},{"key":"e_1_2_5_3_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-2006-934102"},{"key":"e_1_2_5_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(06)68181-6"},{"key":"e_1_2_5_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1076-6332(00)80322-0"},{"key":"e_1_2_5_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejogrb.2007.02.013"},{"key":"e_1_2_5_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.5256"},{"key":"e_1_2_5_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(86)90837-8"},{"key":"e_1_2_5_9_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1996.tb09509.x"},{"key":"e_1_2_5_10_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-0705.2001.00437.x"},{"key":"e_1_2_5_11_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.0960-7692.2001.00526.x"},{"key":"e_1_2_5_12_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.1884"},{"key":"e_1_2_5_13_2","doi-asserted-by":"publisher","DOI":"10.1515\/JPM.2007.007"},{"key":"e_1_2_5_14_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.5242"},{"key":"e_1_2_5_15_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.0960-7692.2001.00608.x"},{"key":"e_1_2_5_16_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.61"}],"container-title":["Journal of Clinical Ultrasound"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjcu.20833","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jcu.20833","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,21]],"date-time":"2023-11-21T10:48:57Z","timestamp":1700563737000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jcu.20833"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,5,4]]},"references-count":15,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2011,7]]}},"alternative-id":["10.1002\/jcu.20833"],"URL":"https:\/\/doi.org\/10.1002\/jcu.20833","archive":["Portico"],"relation":{},"ISSN":["0091-2751","1097-0096"],"issn-type":[{"value":"0091-2751","type":"print"},{"value":"1097-0096","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,5,4]]}}}