What is HSG in radiology?
What is Hysterosalpingography? HSG is an x-ray exam of the uterus and fallopian tubes. It uses a special form of x-ray called fluoroscopy and a contrast material. An x-ray exam helps doctors diagnose and treat medical conditions.
How is HSG performed?
In HSG, a thin tube is threaded through the vagina and cervix. A substance known as contrast material is injected into the uterus. A series of X-rays, or fluoroscopy, follows the dye, which appears white on X-ray, as it moves into the uterus and then into the tubes.
How much contrast is used in HSG?
Contrast Media Virtually any water-soluble contrast agent containing approximately 300 to 350 mg I/mL can be used. These include meglumine diatrizoate, iopamidol, and iohexol. Occasionally a small amount of oil is administered via the uterine catheter after the HSG as a potential aid to fertility.
What type of contrast is used in HSG?
Usually completed in about 3-5 minutes, HSG is performed by instilling radio opaque contrast into the uterine cavity while using fluoroscopy with intermittent still images for documentation.
When should HSG test be done?
It is best to have HSG done in the first half of the menstrual cycle (days 1 to 14). This timing reduces the chance that you may be pregnant. During HSG, a contrast agent is placed in the uterus and fallopian tubes.
Can I get pregnant immediately after HSG?
How soon after HSG can you start trying to conceive? You’ll want to follow your doctor’s instructions, but generally, it’s safe to try within several days. While HSG can boost your chances of conceiving, it’s important to remember that the primary purpose is to serve as a diagnostic test.
Can HSG unblock fallopian tubes?
One theory is that the dye flushes out the fallopian tubes, clearing minor blocks in some women. (Though HSG cannot repair or open the serious blockages.) If this is the case, the HSG test result will show unblocked fallopian tubes. However, some contrast may seem to stop and then continue on the x-ray.
When is the best time to do HSG test?
It is best to have HSG done in the first half of the menstrual cycle (days 1 to 14). This timing reduces the chance that you may be pregnant. During HSG, a contrast agent is placed in the uterus and fallopian tubes. This is a fluid that contains a dye.
What liquid is used for HSG?
The doctor gently fills the uterus with a liquid containing iodine (a fluid that can be seen by x-ray) through the cannula. The contrast will be seen as white on the image and can show the contour of the uterus as the liquid travels from the cannula, into the uterus, and through the fallopian tubes.