[Diagnostic of the estimated time of ovulation by ultrasounds (author's transl)]. / Daignosyico do dia provavel da ovulacao pela ultra-sonografia.

PIP: Recent experiments have demonstrated that it is possible to detect ovulation by ultrasounds; the examination, which is totally safe and lasts about 5 minutes, should be done during the early follicular phase and daily during the preovulatory period. The diameter of the follicle is usually 2.0-2.5 cm. between day 1 and day 0, which registers the maximum LH (luteinizing hormone) peak, i.e. is the estimated time of ovulation. After day 0 one can either observe the disappearance of the follocular image, or the appearance of the corpus luteum, which can be identified during 24-48 hours.^ieng