Three-contrasts method hysteroscopy: the use of real-time ultrasonography for monitoring intrauterine operations.

Thirty-four patients were operated on by the technique of three-contrasts method hysteroscopy in this article. In three-contrasts method hysteroscopy, sonography guidance was used instead of laparoscopy guide. The distending medium introduced into the uterus during hysteroscopy and injected normal saline into the bladder and abdomen (which flowed into the posterior cul-de-sac) created these three contrasts. As a result, the walls of the uterus were clearly seen at sonography. Advantages and disadvantages of this technique have been described in detail.