{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T17:59:24Z","timestamp":1772992764801,"version":"3.50.1"},"reference-count":17,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,9,20]],"date-time":"2024-09-20T00:00:00Z","timestamp":1726790400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2024,9,20]],"date-time":"2024-09-20T00:00:00Z","timestamp":1726790400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Clinical Ultrasound"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>This study was aimed to assess the predictive validity of internal os distance (IOD) in mid\u2010trimester scan for the prediction of third\u2010trimester low\u2010positioned placenta, and to define a cut\u2010off of IOD at which third\u2010trimester low\u2010positioned placenta could be identified, see the association of placental site (anterior\/posterior), previous history of cesarean section with abnormal location of placenta in third trimester and see the maternal and neonatal outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>It was a prospective cohort study of women with low\u2010positioned placenta (IOD\u2009&lt;\u200920\u2009mm) at mid\u2010trimester anomaly scan followed up in third trimester till birth. Relative risks for a low\u2010positioned placenta in the third\u2010trimester were calculated for women with posterior versus anterior, low\u2010lying placenta versus placenta previa and positive versus negative history of cesarean section. Multilevel likelihood ratios and corresponding ROC curves for different ranges of IOD were calculated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Women with posterior placenta had a high risk of low positioned placenta compared to anterior placenta (9.28% vs. 0.74%); RR 1.45, similarly women with placenta previa had high risk compared to low lying placenta (68.57% vs. 1.69%); RR 6.51, so did the women with previous cesarean section (9.41% vs. 5.87%); RR 1.47.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>93.42% placenta which were low positioned in mid trimester were normally situated in third trimester. The cut\u2010off for IOD in anterior placenta was \u221240\u2009mm and in posterior placenta was 14.3\u2009mm. IOD measurement and interpretation seems promising.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jcu.23841","type":"journal-article","created":{"date-parts":[[2024,9,20]],"date-time":"2024-09-20T22:59:59Z","timestamp":1726873199000},"page":"155-162","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Low placenta at the mid trimester anomaly scan\u2014A cause for concern?"],"prefix":"10.1002","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4434-0843","authenticated-orcid":false,"given":"Sarika","family":"Yadav","sequence":"first","affiliation":[{"name":"Department of Fetal Medicine Fernandez Hospital  Hyderabad India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aditi","family":"Shah","sequence":"additional","affiliation":[{"name":"Department of Fetal Medicine Fernandez Hospital  Hyderabad India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,9,20]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/00001703-200412000-00002"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000000245"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1148\/109.1.167"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.5144\/0256-4947.2000.382"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-0705.2002.00814.x"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1080\/01443610410001722545"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4757-4193-3"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1479-828X.1972.tb00497.x"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/1471-0528.15306"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1701-2163(16)32401-X"},{"issue":"1025","key":"e_1_2_8_12_1","first-page":"1027","article-title":"Placental implantation at 18\u2009weeks and migration throughout pregnancy","volume":"91","author":"Magann EF","year":"1998","journal-title":"South Med J"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-0705.2001.00450.x"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.21903"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1701-2163(16)35238-0"},{"key":"e_1_2_8_16_1","first-page":"331","article-title":"Sonographic assessment of placental migration in second trimester low lying placenta","volume":"14","author":"Pradhan S","year":"2012","journal-title":"Nepal Med Coll J"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/jum.14554"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2009.10.358"}],"container-title":["Journal of Clinical Ultrasound"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jcu.23841","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/jcu.23841","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jcu.23841","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T14:14:13Z","timestamp":1772979253000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jcu.23841"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,9,20]]},"references-count":17,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2025,1]]}},"alternative-id":["10.1002\/jcu.23841"],"URL":"https:\/\/doi.org\/10.1002\/jcu.23841","archive":["Portico"],"relation":{},"ISSN":["0091-2751","1097-0096"],"issn-type":[{"value":"0091-2751","type":"print"},{"value":"1097-0096","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,9,20]]},"assertion":[{"value":"2024-01-06","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-09-06","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-09-20","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}