About UWH
Saline Infusion Sonogram (SIS)
The saline infusion sonogram (SIS), also call sonohysterography, is an ultrasound test done after a saline solution has been infused into the uterus. The saline solution distends the uterus and acts as a contrast to the internal structure. This procedure provides more detail than a conventional ultrasound.
The Procedure
The SIS is performed early in the menstrual cycle, preferably between
days 4 and 9, when the menstrual period has stopped or almost stopped
but before ovulation occurs.
A patient who has had an infection in the uterus or fallopian tubes (sometimes called Pill, pelvic inflammatory disease, or salpingitis) at any time in the past should take antibiotic pills before the test is done. Most women will feel more comfortable during the procedure if they take about 600 mg of ibuprofen (3 Advil 200mg tablets) about 30 minutes before this ultrasound is done.
The patient lies on her back with her feet in stirrups (as on a gynecology examining table). A speculum is placed in the vagina and a small tube is used to insert a saline solution into the uterus. A vaginal ultrasound probe is used to make images of the saline filling the endometrial cavity. An evaluation of the cul de sac (open abdominal space behind the uterus) is done with the vaginal ultrasound probe still in place. If either fallopian tube is open, some of the saline should be seen in this space.
Reasons for SIS
SIS is used to evaluate the inner cavity of the uterus (endometrial cavity).
It can also be used to discover whether either of the fallopian tubes
is open. This test does not reveal any abnormalities on the outside
of the uterus or on the ovaries, such as adhesions or endometriosis.
Recovery
The test may cause some discomfort, such as pelvic or lower abdominal
cramping. Most women can drive and return to work within two hours
after the SIS. There are no specific restrictions on activity after
the SIS has been done.
Contact the nursing staff or a physician after the procedure if any
of the following symptoms develop:
• Persistent pelvic or abdominal pain
• Difficult or painful urination
• Temperature over 100 degrees
