{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T16:41:04Z","timestamp":1785775264067,"version":"3.56.0"},"reference-count":23,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2014,5,12]],"date-time":"2014-05-12T00:00:00Z","timestamp":1399852800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Aase og Ejnar Danielsens Fond","award":["10-000653"],"award-info":[{"award-number":["10-000653"]}]},{"name":"Br\u00ef\u00bf\u00bddrene Hartmanns Fond","award":["A16255"],"award-info":[{"award-number":["A16255"]}]},{"name":"Direkt\u00ef\u00bf\u00bdr Jacob Madsens og Hustru Olga Madsens Fond","award":["4910"],"award-info":[{"award-number":["4910"]}]},{"name":"Fonden af 17-12-1981","award":["19024001"],"award-info":[{"award-number":["19024001"]}]},{"name":"Kong Christian Den Tiendes Fond","award":["35\/2012"],"award-info":[{"award-number":["35\/2012"]}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2014,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To evaluate how the approximate Young's modulus of the uterine cervix assessed by quantitative sonoelastography in patients undergoing induction of labor is associated with the cervical dilation time and to evaluate the approximate Young's modulus as a predictor of prolonged cervical dilation time.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>Cross\u2010sectional study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>Aarhus University Hospital, Aarhus, Denmark.<\/jats:p><\/jats:sec><jats:sec><jats:title>Population<\/jats:title><jats:p>Term\u2010pregnant women.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 49 term\u2010pregnant women were included before induction of labor. The approximate Young's modulus of the anterior cervical lip was determined by the use of a reference cap applied on the end of the transvaginal transducer during sonoelastography.<\/jats:p><\/jats:sec><jats:sec><jats:title>Main outcome measures<\/jats:title><jats:p>Cervical dilation time during active labor.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The approximate Young's modulus was associated with the cervical dilation time during active labor (<jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup><jats:sub>log<\/jats:sub>\u00a0=\u00a00.24, <jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.01) and predicted prolonged duration of cervical dilation time (&gt;330\u00a0min) with the area under the receiver operating characteristic (<jats:styled-content style=\"fixed-case\">ROC<\/jats:styled-content>) curve of 0.71, sensitivity 74%, and specificity 69%. Equivalent figures for the Bishop's score were <jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup><jats:sub>log<\/jats:sub>\u00a0=\u00a00.02 (<jats:italic>p\u00a0=<\/jats:italic>\u00a00.37), the area under the <jats:styled-content style=\"fixed-case\">ROC<\/jats:styled-content> curve 0.53, sensitivity 53%, and specificity 46%. For the cervical length measurements the corresponding results were: <jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup><jats:sub>log<\/jats:sub>\u00a0=\u00a00.02, <jats:italic>p<\/jats:italic>\u00a0=\u00a00.35, area under the <jats:styled-content style=\"fixed-case\">ROC<\/jats:styled-content> curve 0.57, sensitivity 66% and specificity 54%. The intra\u2010observer and inter\u2010observer intraclass correlations were 88% and 58%, respectively, with quantitative elastography.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The approximate Young's modulus is superior to the Bishop score and the cervical length measurements concerning the prediction of cervical dilation time and the risk of prolonged dilation time after induction of labor.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aogs.12389","type":"journal-article","created":{"date-parts":[[2014,4,5]],"date-time":"2014-04-05T06:57:13Z","timestamp":1396681033000},"page":"684-690","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["Quantitative sonoelastography of the uterine cervix prior to induction of labor as a predictor of cervical dilation time"],"prefix":"10.1111","volume":"93","author":[{"given":"Lene","family":"Hee","sequence":"first","affiliation":[{"name":"Institute of Clinical Medicine Aarhus University Aarhus Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christina K.","family":"Rasmussen","sequence":"additional","affiliation":[{"name":"Institute of Clinical Medicine Aarhus University Aarhus Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacob M.","family":"Schl\u00fctter","sequence":"additional","affiliation":[{"name":"Institute of Clinical Medicine Aarhus University Aarhus Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Puk","family":"Sandager","sequence":"additional","affiliation":[{"name":"Institute of Clinical Medicine Aarhus University Aarhus Denmark"},{"name":"Department of Obstetrics and Gynecology Aarhus University Hospital Aarhus Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Niels","family":"Uldbjerg","sequence":"additional","affiliation":[{"name":"Institute of Clinical Medicine Aarhus University Aarhus Denmark"},{"name":"Department of Obstetrics and Gynecology Aarhus University Hospital Aarhus Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2014,5,12]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.9021"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.11067"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0031-1299330"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.12344"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10549-011-1745-2"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/aogs.12246"},{"key":"e_1_2_9_8_1","first-page":"266","article-title":"Pelvic scoring for elective induction","volume":"24","author":"Bishop EH","year":"1964","journal-title":"Obstet Gynecol"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.2746"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00404-008-0915-x"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.12467"},{"key":"e_1_2_9_12_1","first-page":"137","article-title":"Prelabor evaluation of inducibility","volume":"60","author":"Lange AP","year":"1982","journal-title":"Obstet Gynecol"},{"key":"e_1_2_9_13_1","first-page":"495","article-title":"Relation of prelabor evaluation to inducibility and the course of labor","volume":"28","author":"Friedman EA","year":"1966","journal-title":"Obstet Gynecol"},{"key":"e_1_2_9_14_1","first-page":"539","article-title":"Prelabor status evaluation. 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