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Saline infusion sonohysterography (SIS) is a variety of pelvic ultrasound where a small volume of saline is instilled into the uterine cavity to allow clearer visualisation of the endometrial lining.
The procedure is carried out with the patient in the lithotomy position with a speculum in the vagina to allow cannulation of the cervix with a small flexible plastic catheter (HyCoSy). On insertion of the catheter, the speculum is removed and, with the catheter in place, the transvaginal ultrasound probe is inserted.
SIS is a good test to assess the endometrium for those patients who
A negative pregnancy test for those appropriate patients.
There is a very small risk of endometrial infection post procedure.
Hysteroscopy and curettage may provide similar and/or complementary information to SIS. This may be combined with cervical dilatation if the cervical canal is very tight. The examination should be scheduled day 2–3 after the end of the last period.
Page last modified on 31/8/2018.
RANZCR® is not aware that any person intends to act or rely upon the opinions, advices or information contained in this publication or of the manner in which it might be possible to do so. It issues no invitation to any person to act or rely upon such opinions, advices or information or any of them and it accepts no responsibility for any of them.
RANZCR® intends by this statement to exclude liability for any such opinions, advices or information. The content of this publication is not intended as a substitute for medical advice. It is designed to support, not replace, the relationship that exists between a patient and his/her doctor. Some of the tests and procedures included in this publication may not be available at all radiology providers.
RANZCR® recommends that any specific questions regarding any procedure be discussed with a person's family doctor or medical specialist. Whilst every effort is made to ensure the accuracy of the information contained in this publication, RANZCR®, its Board, officers and employees assume no responsibility for its content, use, or interpretation. Each person should rely on their own inquires before making decisions that touch their own interests.