Ultrasonography Sydney NSW

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A sonohysterogram uses ultrasound to look at the inside of your uterus. It is a simple, minimally invasive diagnostic procedure designed to provide a clearer look at the endometrial cavity (the inside part of the uterus) and its lining, the endometrium.

This procedure is usually performed to investigate potential uterine malformations in women with a history of recurrent miscarriage or premature delivery, such as bicornuate uterus or septated uterus. It can also be used when a normal ultrasound has not found the cause of heavy bleeding or trouble getting pregnant. As it provides a much clearer view than a regular ultrasound, a sonohysterogram is usually recommended as the next step of evaluation. Also, if the endometrial cavity is thickened or irregular on routine 2D scanning, immediate sonohysterogram may be offered to women for further clarification.

This imaging test checks the inside of the uterus for:

  • An abnormal shape or structure
  • Abnormal growths or masses, such as fibroids or polyps
  • Scarring inside the uterus (adhesions)

Saline sonography procedure

A small amount of sterile saline is introduced into the endometrial cavity through the catheter. This saline distends the endometrial cavity, allowing enhanced definition and better assessment of the contour and shape of the endometrium.

If you are referred to the Centre for Women’s Ultrasound for a sonohysterogram, an initial transvaginal pelvic scan will be performed to detect any obvious pathology. A sonohysterogram is done in several steps and the first part of the scan can be likened to the first part of a pap smear, with a vaginal speculum being inserted to visualise the cervix.

A thin flexible catheter is inserted through the opening of the cervix, also assisting in providing a clearer image. Your doctor or sonographer will then use an ultrasound probe to take images for their assessment.

We recommend taking 2 Nurofen (Ibuprofen) 200mg tablets 30 minutes before the procedure to minimise any cramping. Two tablets of Panadol or Panadeine are alternatives for those that suffer any allergies to ibuprofen.

What do I need to take into consideration?

It is important that you are not pregnant when you undergo a sonohysterogram, as the procedure can interrupt the embryo’s development.

The best time to perform a saline sonohysterogram is just after your period has finished. If you are postmenopausal, you can usually have the procedure performed at any time.

The level of pain experienced during the procedure is usually minimal, with most patients experiencing either no pain or mild cramping, similar to period pain, from the fluid being injected.

After the procedure, you may have cramping, spotting or a watery discharge for a few hours.

Ultrasonography Sydney