title: Late diagnosis of nonconjoined monoamniotic twins using computed tomographic imaging: a case report.
abstract: Monoamniotic twin gestations, although rare, are associated with a high perinatal mortality rate. Early antenatal diagnosis is important to ensure optimal perinatal care. However, the diagnosis can be difficult to confirm, especially in late gestation when a dividing membrane may be difficult to visualize. Intra-amniotic injection of Renografin followed by a single-slice computed tomographic scan at the level of the umbilicus is described. This imaging method assisted in the confirmation of monoamniotic twinning.
authors.affiliation: Department of Obstetrics and Gynecology, University of South Florida College of Medicine, Tampa.
authors.forename: S J
authors.initials: SJ
authors.lastname: Carlan
authors.forename: J L
authors.initials: JL
authors.lastname: Angel
authors.forename: S K
authors.initials: SK
authors.lastname: Sawai
authors.forename: V
authors.initials: V
authors.lastname: Vaughn
mesh_terms: D000328:Adult; D000650:Amnion / Q000000981:diagnostic imaging*; D003974:Diatrizoate Meglumine; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014427:Twins
chemical_list: D003974:Diatrizoate Meglumine