title: The petrous portion of the temporal bone can be demonstrated by transvaginal ultrasound at 14-16 weeks of gestation.
authors.forename: M
authors.initials: M
authors.lastname: Odeh
authors.forename: E
authors.initials: E
authors.lastname: Ophir
authors.forename: J
authors.initials: J
authors.lastname: Bornstein
mesh_terms: D005260:Female; D005333:Fetus / Q000033:anatomy & histology; D006801:Humans; D011247:Pregnancy; D013701:Temporal Bone / Q000033:anatomy & histology / Q000000981:diagnostic imaging* / Q000196:embryology*; D016216:Ultrasonography, Prenatal