{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T13:12:35Z","timestamp":1773061955263,"version":"3.50.1"},"reference-count":35,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,1,21]],"date-time":"2024-01-21T00:00:00Z","timestamp":1705795200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100010804","name":"Faculty of Medicine, Prince of Songkla University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100010804","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intl J Gynecology &amp; Obste"],"published-print":{"date-parts":[[2024,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To assess the reliability of sonographic measurements of six cervical and pelvic parameters by three sonographers with varying levels of experience.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A cross\u2010sectional study was conducted in pregnant women with a gestational age of \u226539\u2009weeks. Each pregnant woman was examined by two sonographers with different levels of experience. Six parameters were measured: cervical length (CL), cervical strain elastography (extrinsic type), posterior cervical angle (PCA), fetal head\u2010to\u2010perineum distance (FHPD), fetal head\u2010to\u2010pubic symphysis distance (FHSD), and angle of progression (AOP). Intra\u2010 and interobserver reliabilities were assessed using the intraclass correlation coefficient with a 95% confidence interval. Pearson pairwise correlation coefficients were used to analyze the correlation between the parameter values.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In all, 66 pregnant women were enrolled in this study. We found excellent intraobserver reliability for measurements of CL, PCA, FHPD, FHSD, and AOP and good\u2010to\u2010excellent intraobserver reliability for cervical strain values in the cross\u2010sectional view of the endocervix in the internal os area and cross\u2010sectional view of the entire cervix in the internal os area. Interobserver reliability was excellent for all pelvic parameters, except for the FHPD. Strain values were moderate to excellent in the area of the internal os. A significant negative correlation between CL and strain values at the internal os was observed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Pelvic parameters, except for FHPD, have excellent intra\u2010 and interobserver reliabilities. The high reproducibility of CL and cervical strain elastography at the internal os level, with a negative correlation between these two parameters, may play an important role in predicting successful induction of labor.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ijgo.15363","type":"journal-article","created":{"date-parts":[[2024,1,22]],"date-time":"2024-01-22T06:14:15Z","timestamp":1705904055000},"page":"333-342","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Reliability of the sonographic evaluation for cervical length and elastography with pelvic parameters in term pregnancy by experienced operators with varying levels of experience"],"prefix":"10.1002","volume":"166","author":[{"given":"Rapphon","family":"Sawaddisan","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine Prince of Songkla University  Hat Yai 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