Gynecologic Ultrasound (Hysterosonography)

Hysterosonography, sonohysterography, or SIS (saline infusion sonogram) is a noninvasive technique using a slow infusion of sterile saline into the uterine cavity during ultrasound imaging. This procedure allows your physician to evaluate abnormalities of the endometrium (lining of the uterus). Gynecologic ultrasound testing is used to evaluate patients with unexplained vaginal bleeding, infertility problems, fibroids, or other abnormalities seen on a baseline ultrasound.

A vaginal ultrasound is performed first. The physician inserts a speculum into the vagina and cleans the cervix with an iodine solution. A catheter (thin tube) is inserted into the uterus, and the ultrasound images are taken while the saline is injected through the catheter. Allow approximately 1 hour for the visit.

Because some cramping can be felt during the exam, we recommend that you take Advil or Ibuprofen 1-2 hours beforehand. This procedure should be scheduled between days 7-12 of your menstrual cycle, unless otherwise instructed. Your physician will go over the results with you upon completion. Some light spotting afterward is common; if you should experience abnormal bleeding, fever, or pain, contact your physician.