Transvaginal Ultrasound Sydney NSW

If you think you require an infertility test, a HyCoSy procedure is usually effective at diagnosing blockages in the fallopian tubes and other abnormalities of the ovaries and uterus.

Blockage of the fallopian tubes due to various causes including endometriosis and pelvic infection has long been known as a cause of infertility. Our specialists will recommend a series of tests and examinations to confirm the cause of infertility, which may include a HyCoSy procedure.

What is tubal patency?

A test for tubal patency simply means testing the effectiveness of the fallopian tubes. This is done with a special agent used to visualise the tubes and determine tubal patency.

Here at the Centre for Women’s Ultrasound we utilise the HyCoSy method for testing tubal patency. This special test is required as the examination of the fallopian tubes is not possible with general pelvic ultrasound.

What is a HyCoSy test?

Hysterosalpingo-contrast-sonography (HyCoSy) is a transvaginal outpatient ultrasound technique used to confirm tubal patency. To begin the test, a speculum will be inserted into the vagina to visualise the cervix, just like a pap smear. A catheter will then be inserted into the vagina, with a small balloon attached to the end which will be slowly enlarged to prevent any fluid leaking out of the cervix. The speculum will then be removed and the transvaginal ultrasound scan will begin, which will enable us to obtain a visual of the uterus. Saline will then be introduced into the cavity (the same way as in a sonohysterogram). During this part of the test problems such as polyps, submucous fibroids and uterine abnormalities may be identified. After this the saline will be infused into and observed to flow along the fallopian tubes. The bright echoes generated by air microbubbles in saline and colour Doppler imaging are used to confirm tubal patency. Patency is confirmed if this solution flows through the fallopian tubes, travelling to the area surrounding the ovaries.

Because of its convenience and safety, HyCoSy has increasingly been used in recent years in preference to other techniques in the investigation of tubal patency. HyCoSy also allows ultrasound examination of the other pelvic organs and can give valuable information regarding the reproductive organs.

Will it hurt?

Some parts of this procedure can cause slight discomfort. Your practitioner at Centre for Women’s Ultrasound will ensure that you are as comfortable as possible during this procedure. We create a relaxing environment for our patients which can increase comfort and reduce pain in some cases.

How does HyCoSy compare to other methods of testing tubal patency?

Prior to the development of HyCoSy, hysterosalpingography (HSG) and laparoscopy with dye were used for routine investigation of tubal patency. These techniques are expensive, time-consuming and unpleasant for the patient as they involve surgery, general anaesthesia and hospitalisation.

Transvaginal Ultrasound Sydney