{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T13:31:38Z","timestamp":1777901498752,"version":"3.51.4"},"reference-count":12,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2021,4,1]],"date-time":"2021-04-01T00:00:00Z","timestamp":1617235200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"National Key Research and Development Program of China","award":["2018YFC1002900"],"award-info":[{"award-number":["2018YFC1002900"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Science Progress"],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:p>The ratio of placental territory discordance to birthweight discordance was calculated in monochorionic diamniotic twin placentas. We then determined whether the ratio: (1) correlated with the overall diameter of the placental superficial vascular anastomoses and (2) was different in normal monochorionic diamniotic twin (normal MCDA), twin-to-twin transfusion syndrome (TTTS), and selective intrauterine growth restriction (sIUGR) pregnancies. A prospective study of MCDA placentas was conducted from April 1, 2016, to April 1, 2019, including three groups, normal MCDA ( N\u2009=\u200949), TTTS ( N\u2009=\u200938), and sIUGR ( N\u2009=\u200952). Placentas were studied via dye injection. In the normal MCDA, sIUGR, and TTTS groups, the ratio positively correlated with the overall diameter of the placental superficial vascular anastomoses (Spearman\u2019s\u2009=\u20090.295, 0.619, and 0.530; p\u2009=\u20090.040, &lt;0.001, and 0.001, respectively) and gradually decreased from normal MCDA to sIUGR and to TTTS (2.88 (0.34, 64.25), 1.70 (0.27, 4.52), and 1.03 (0.12, 15.17); p\u2009&lt;\u20090.001, p\u2009=\u20090.016\/&lt;0.001\/0.005, respectively). The placental territory discordance to birthweight discordance ratio is an effective index reflecting the overall vascular anastomoses in MCDA placentas.<\/jats:p>","DOI":"10.1177\/00368504211010595","type":"journal-article","created":{"date-parts":[[2021,4,21]],"date-time":"2021-04-21T15:54:14Z","timestamp":1619020454000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Comparison of the ratio of placental territory discordance to birthweight discordance in placentas of monochorionic diamniotic twins"],"prefix":"10.1177","volume":"104","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0268-666X","authenticated-orcid":false,"given":"Wang","family":"Xueju","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li","family":"Luyao","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuan","family":"Pengbo","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shi","family":"Huifeng","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhao","family":"Yangyu","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Yuan","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2021,4,21]]},"reference":[{"key":"bibr1-00368504211010595","doi-asserted-by":"publisher","DOI":"10.1016\/j.ogc.2019.10.010"},{"key":"bibr2-00368504211010595","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2007.05.009"},{"key":"bibr3-00368504211010595","doi-asserted-by":"publisher","DOI":"10.1016\/j.placenta.2010.02.018"},{"key":"bibr4-00368504211010595","doi-asserted-by":"publisher","DOI":"10.1375\/twin.14.2.192"},{"key":"bibr5-00368504211010595","doi-asserted-by":"publisher","DOI":"10.1067\/mob.2003.292"},{"key":"bibr6-00368504211010595","doi-asserted-by":"publisher","DOI":"10.1002\/uog.19013"},{"key":"bibr7-00368504211010595","doi-asserted-by":"publisher","DOI":"10.1002\/uog.20096"},{"key":"bibr8-00368504211010595","first-page":"e3208","volume":"55","author":"Lopriore E","year":"2011","journal-title":"J Vis Exp"},{"key":"bibr9-00368504211010595","first-page":"1323","volume":"95","author":"Wang X","year":"2015","journal-title":"Zhonghua Yi Xue Za Zhi"},{"key":"bibr10-00368504211010595","doi-asserted-by":"publisher","DOI":"10.3109\/14767058.2015.1043883"},{"key":"bibr11-00368504211010595","doi-asserted-by":"publisher","DOI":"10.1016\/j.placenta.2013.04.005"},{"key":"bibr12-00368504211010595","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2013.09.022"}],"container-title":["Science Progress"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/00368504211010595","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/00368504211010595","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/00368504211010595","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T11:02:52Z","timestamp":1777633372000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/00368504211010595"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,4]]},"references-count":12,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2021,4]]}},"alternative-id":["10.1177\/00368504211010595"],"URL":"https:\/\/doi.org\/10.1177\/00368504211010595","relation":{},"ISSN":["0036-8504","2047-7163"],"issn-type":[{"value":"0036-8504","type":"print"},{"value":"2047-7163","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,4]]},"article-number":"00368504211010595"}}