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DC Field | Value | Language |
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dc.contributor.author | Dias, T. | en_US |
dc.contributor.author | Arcangeli, T. | en_US |
dc.contributor.author | Bhide, A. | en_US |
dc.contributor.author | Napolitano, R. | en_US |
dc.contributor.author | Mahsud-Dornan, S. | en_US |
dc.contributor.author | Thilaganathan, B. | en_US |
dc.date.accessioned | 2014-10-29T09:33:11Z | |
dc.date.available | 2014-10-29T09:33:11Z | |
dc.date.issued | 2011 | en_US |
dc.identifier.citation | Ultrasound in Obstetrics and Gynecology. 2011; 38(5): pp.530-32 | en_US |
dc.identifier.issn | 0960-7692 (Print) | en_US |
dc.identifier.issn | 1469-0705 (Electronic) | en_US |
dc.identifier.uri | http://repository.kln.ac.lk/handle/123456789/2107 | |
dc.description | Indexed in MEDLINE | |
dc.description.abstract | OBJECTIVE: To determine the accuracy of ultrasound at 11-14 weeks' gestation in the diagnosis of chorionicity in twin pregnancy. METHODS:This was a retrospective observational study of data obtained between 1999 and 2010. At the first-trimester routine ultrasound scan,chorionicity was assigned according to the number of placental masses and T or λ-signs for a single placental mass. Chorionicity was confirmed by histology or discordant sex at birth. RESULTS: A total of 648 pregnancies were assigned chorionicity by first-trimester ultrasound during the study period. Chorionicity was ascertained in 613 cases, either by histology (n = 340) or discordant sex (n = 273). Chorionicity was correctly assigned by ultrasound at 11-14 weeks in 612 of 613 pregnancies (accuracy 99.8%). Sensitivity and specificity for determining monochorionicity were 100% and 99.8%, respectively.CONCLUSIONS:First-trimester ultrasound can be used to determine chorionicity reliably by noting the number of placental masses and T or λ-signs.Determination of twin chorionicity is important and should be completed in the first trimester. | en_US |
dc.publisher | Wiley | en_US |
dc.subject | Pregnancy, Twin | en_US |
dc.title | First-trimester ultrasound determination of chorionicity in twin pregnancy | en_US |
dc.type | Article | en_US |
dc.identifier.department | Obstetrics and Gynaecology | en_US |
dc.creator.corporateauthor | International Society of Ultrasound in Obstetrics and Gynecology | en_US |
Appears in Collections: | Journal/Magazine Articles |
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