{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T12:34:46Z","timestamp":1769517286237,"version":"3.49.0"},"reference-count":34,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2016,11,16]],"date-time":"2016-11-16T00:00:00Z","timestamp":1479254400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2017,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>The aim of the study was to investigate the accuracy of estimating fetal weight with ultrasound in pregnancies past term, using the <jats:styled-content style=\"fixed-case\">eS<\/jats:styled-content>nurra algorithm.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>In all, 419 women with pregnancy length of 290 days, attending a specialist consultation at Stavanger University Hospital, Norway, were included in a prospective observational study. Fetal weight was estimated using biparietal diameter (<jats:styled-content style=\"fixed-case\">BPD<\/jats:styled-content>) and abdominal circumference (<jats:styled-content style=\"fixed-case\">AC<\/jats:styled-content>). The algorithm implemented in an electronic calculation (<jats:styled-content style=\"fixed-case\">eS<\/jats:styled-content>nurra) was used to compute estimated fetal weight (<jats:styled-content style=\"fixed-case\">EFW<\/jats:styled-content>). Results were compared with birthweight (<jats:styled-content style=\"fixed-case\">BW<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean interval between the ultrasound examination and birth was 2 days (<jats:styled-content style=\"fixed-case\">SD<\/jats:styled-content> 1.4). The median difference between <jats:styled-content style=\"fixed-case\">BW<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">EFW<\/jats:styled-content> was \u22126 g (<jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> \u221240 to +25 g) and the median percentage error was \u20130.1% (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> \u22121.0 to 0.6%). The median absolute difference was 190 g (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 170\u2013207 g). The <jats:styled-content style=\"fixed-case\">BW<\/jats:styled-content> was within 10% of <jats:styled-content style=\"fixed-case\">EFW<\/jats:styled-content> in 83% (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 79\u201387%) of cases and within 15% of <jats:styled-content style=\"fixed-case\">EFW<\/jats:styled-content> in 94% (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 92\u201396%) of cases. Limits of agreement (95%) were from \u2212553 g to +556 g. Using 5% false\u2010positive rates, the sensitivity in detecting macrosomic and small for gestational age fetuses was 54% (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 35\u201372%) and 49% (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 35\u201363%), respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The accuracy of fetal weight estimation was good. Clinicians should be aware of limitations related to prediction at the upper and lower end, and the importance of choosing appropriate cut\u2010off levels.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aogs.13044","type":"journal-article","created":{"date-parts":[[2016,10,14]],"date-time":"2016-10-14T15:46:54Z","timestamp":1476460014000},"page":"183-189","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Estimation of fetal weight in pregnancies past term"],"prefix":"10.1111","volume":"96","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3162-9595","authenticated-orcid":false,"given":"Torbj\u00f8rn M.","family":"Eggeb\u00f8","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology Stavanger University Hospital Stavanger Norway"},{"name":"National Center for Fetal Medicine St. Olavs Hospital Trondheim University Hospital Trondheim Norway"},{"name":"Department of Laboratory Medicine Children's and Women's Health Norwegian University of Science and Technology Trondheim Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olav A.","family":"Klefstad","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Stavanger University Hospital Stavanger Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Inger","family":"\u00d8kland","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Stavanger University Hospital Stavanger Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1368-9105","authenticated-orcid":false,"given":"Elsa","family":"Lindtj\u00f8rn","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Stavanger University Hospital Stavanger Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sturla H.","family":"Eik\u2010Nes","sequence":"additional","affiliation":[{"name":"National Center for Fetal Medicine St. Olavs Hospital Trondheim University Hospital Trondheim Norway"},{"name":"Department of Laboratory Medicine Children's and Women's Health Norwegian University of Science and Technology Trondheim Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H\u00e5kon K.","family":"Gjessing","sequence":"additional","affiliation":[{"name":"Division of Epidemiology Norwegian Institute of Public Health Oslo Norway"},{"name":"Department of Public Health and Primary Health Care University of Bergen Bergen Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2016,11,16]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-0705.1996.08030178.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016349009028681"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.4053"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.10081"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/OGX.0b013e318186a9c7"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1998.tb10047.x"},{"key":"e_1_2_7_8_1","unstructured":"Helsedirektoratet.Overtidige svangerskap[Postterm\u2010pregnancies.] (in Norwegian. 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