[Localisation of placenta by liquid crystal thermography (author's transl)]

The efficiency of liquid crystals in placenta localisation was checked by comparison of thermographic results with those obtained from using the ultrasonic B-scan method. Ther results obtained from the two techniques were in fair agreement in 93 of 106 cases or 87.7 per cent. The highest amount of agreement was recorded from the group with anterior-wall placenta. For placenta localisation the sensitivity of liquid crystal thermography was found to be inferior to that of the ultrasonic B-scan method.