[Perspectives of ultrasonic diagnosis for the localization of intrauterine pessaries. Ultrasonic presentation of various types of IUDs].

The authors report on their experiences with ultrasonic localization of several types of IUDs. The investigations were carried out with the ultrasonic equipment-B-scanning -- Vidoson S 635 (Siemens). The characteristics of the echosonic pictures of 6 IUDs (Szontágh-IUD, Lippes-Loop, Gravigard, Alza-T, Copper-T, Antigon were studied. It could be stated that the IUDs can be well identified by ultrasonics. In cases of IUD in situ and early pregnancy the amnion and the IUD can be exactly localized.