title: [Sonographically evident changes in placental structures in pregnancy. 1].
abstract: During the routine prenatal care a sonographical valuation of the placental tissue structure is performed. It could be proved at 657 gravids (1436 examinations) that the placental tissue structure is changing the course of pregnancy. The results were graduated in three stages from 0 to 3. Stage 0 represents the placenta in the first and second trimester and Stage 3 is used for the ripe placenta. The practical use of the placental tissue structure diagnosis is discussed.
mesh_terms: D002823:Chorion / Q000033:anatomy & histology; D005260:Female; D005865:Gestational Age; D006801:Humans; D010920:Placenta / Q000033:anatomy & histology*; D011247:Pregnancy; D014463:Ultrasonography
vernacular_title: Sonographisch nachweisbare Veränderungen plazentarer Strukturen während der Schwangerschaft. 1. Mitteilung.