[Diagnostic ultrasound and the intrauterine pessary].

The aim of the authors is an analysis of the results in application of ultrasound technique in patients with intrauterine device (IUD). Using the ultrasound criteria for a correct and incorrect position of IUD, the criteria for an elevated risk for expulsion and contraindications for IUD application, the authors have used ultrasound technique for diagnosis in 65 patients with IUD. The causes for the "wrong" diagnosis were discussed: imperfection of the apparatuses, non-observance of the conditions for ultrasound examinations and lack of experience. Practical conclusions and recommendations for an increase of the effectively of this seemingly easy method for diagnosis and follow-up of the IUD were made.