{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T17:05:57Z","timestamp":1780506357887,"version":"3.54.1"},"reference-count":19,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2014,1,30]],"date-time":"2014-01-30T00:00:00Z","timestamp":1391040000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Prenatal Diagnosis"],"published-print":{"date-parts":[[2014,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>The objective of this article is to determine reference values for fetal biometric parameters in twin pregnancies and to compare these values between monochorionic and dichorionic pregnancies.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective cross\u2010sectional study was conducted among 157 monochorionic and 176 dichorionic twin pregnancies between 14 and 38\u2009weeks of gestation. Biometric measurements included the biparietal diameter (BPD), abdominal circumference (AC), femurs length (FL) and estimated fetal weight (EFW). To evaluate the correlation between biometric parameters and gestational age, polynomial regression models were created, with adjustments using the coefficient of determination (<jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup>). Comparison between monochorionic and dichorionic pregnancies was performed using analysis of covariance.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean BPD, AC, FL and EFW for the dichorionic pregnancies were 56.16\u2009mm, 191.1\u2009mm, 41.08\u2009mm and 816.1\u2009g, respectively. The mean BPD, AC, FL and EFW for the monochorionic pregnancies were 57.14\u2009mm, 184.2\u2009mm, 39.29\u2009mm and 723.4\u2009g, respectively. There was a statistical difference between mono and dichorionic pregnancies for all the biometric parameters (BPD <jats:italic>p<\/jats:italic>\u2009=\u20090.012; AC <jats:italic>p<\/jats:italic>\u2009=\u20090.047; FL <jats:italic>p<\/jats:italic>\u2009=\u20090.007; EFW <jats:italic>p<\/jats:italic>\u2009=\u20090.011).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Reference curves of biometric parameters in twin pregnancies were determined. Biometric parameters were statistically different between monochorionic and dichorionic pregnancies. \u00a9 2014 John Wiley &amp; Sons, Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/pd.4318","type":"journal-article","created":{"date-parts":[[2014,1,6]],"date-time":"2014-01-06T23:24:39Z","timestamp":1389050679000},"page":"382-388","source":"Crossref","is-referenced-by-count":24,"title":["Reference charts for fetal biometric parameters in twin pregnancies according to chorionicity"],"prefix":"10.1002","volume":"34","author":[{"given":"Edward","family":"Araujo J\u00fanior","sequence":"first","affiliation":[{"name":"Referral Center for Teaching of Diagnostic Imaging (CETRUS)  S\u00e3o Paulo SP Brazil"},{"name":"Department of Obstetrics Federal University of S\u00e3o Paulo (UNIFESP)  S\u00e3o Paulo SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rodrigo","family":"Ruano","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Baylor College of Medicine Texas Children's Hospital  Houston TX USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pouya","family":"Javadian","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Baylor College of Medicine Texas Children's Hospital  Houston TX USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wellington P.","family":"Martins","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Ribeir\u00e3o Preto School of Medicine University of S\u00e3o Paulo (DGO\u2010FMRP\u2010USP)  Ribeir\u00e3o Preto SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julio","family":"Elito J\u00fanior","sequence":"additional","affiliation":[{"name":"Department of Obstetrics Federal University of S\u00e3o Paulo (UNIFESP)  S\u00e3o Paulo SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claudio 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