Saline infusion sonohysterography (SIS) is also sometimes called saline infusion hysterogram (SHG). It is an investigative procedure to assess the uterus cavity to ascertain the shape and look for any abnormalities within it. It incorporates an ultrasound scan and instillation of sterile fluid into the uterus to show the uterine cavity and endometrial layers. With the use of an ultrasound scan, the uterine wall and the ovaries can be visualized as well.
Saline infusion sonohysterography (SIS)
