title: [Attempts at placental localization by means of plate thermography (author's transl)].
abstract: The value of plate thermography in the determination of placental localization was investigated in 120 cases, and compared with the results obtained by the ultrasonic B-Scan method. The duration of pregnancy in these cases ranged from 15 to 37 weeks. The results of plate thermography corresponded with ultrasonic localization in 94 cases (78.3%), but the placenta was incorrectly localized by plate thermography in 26 patients. The highest degree of correspondence was observed in the group of anterior wall placentae, the localisation of the placenta by plate thermography being correct in 52 out of 62 cases. The group of posterior wall placentae showed the lowest rate or correspondence, plate thermography giving the correct localization in only 32 out of 45 cases. Hence, plate thermography does not appear to be of sufficient accuracy for clinical use or scientific investigations. Furthermore, no accurate determination of placental surface area and placental thickness is possible with plate thermography. For all these reasons it may be concluded that this method is greatly inferior to the ultrasonic B-Scan method in respect to placental localization.
mesh_terms: D003951:Diagnostic Errors; D005260:Female; D005865:Gestational Age; D006801:Humans; D010920:Placenta; D011247:Pregnancy; D013499:Surface Properties; D013817:Thermography / Q000379:methods*; D014463:Ultrasonography
vernacular_title: Versuch einer Plazentalokalisation mittels Plattenthermographie