[Contrast hysterosonography: indications and technic].

Contrast-enhanced sonography constitutes a new way of visualizing the uterine cavity. Indeed, real-time transcervical instillation of sterile saline inside the uterine cavity during transvaginal sonography (saline infusion sonography, SIS) allows a precise diagnosis of various intrauterine pathologies such as endometrial polyps, submucous myomas, intrauterine adhesions and various anatomical malformations. The aim of this article is to detail the technique of saline infusion sonography, its indications, contra-indications and semiology.