This type of ultrasound shows if there is a blockage in a leg vein. Such blockages are usually caused by blood clots, which can be dangerous and even lifethreatening if they break loose and travel through the blood to the lungs. If you have pain or swelling in one leg, your doctor may order an ultrasound to determine whether your symptoms are caused by a blockage.
The importance of the Venous Doppler examination of the lower extremities cannot be underestimated. Careful mapping of the lower extremity venous system prior to treatment is essential to a good clinical outcome. While many patients present with large, clinically obvious bulging varicose veins other individuals may have significant “silent” large vein disease (reflux), which can only be detected by Doppler vein mapping. Venous Doppler not only provides a detailed picture of your venous system, but can show abnormal direction blood flow (reflux) in diseased veins. Successful treatment of leg veins requires accurate diagnosis with treatment of abnormal large veins followed by touch-up treatment of smaller veins…………...click & see
An example of a Venous Doppler procedure is a scan which shows the vein with the blood flow direction indicated by the colored space inside the vein wall. The surrounding tissues look like images on weather radar. When the venous duplex test is performed, multiple pictures are taken to document the status of the vein and to select the optimal treatment plan for your veins. Venous Doppler is also performed at the time of Endovenous Laser Treatment as well as in follow up after EVLT
How to prepare for the test?
No preparation is necessary.
What happens when the test is performed?
After squirting some clear jelly onto the inside of one of your thighs to help the ultrasound sensor slide around easily, a technician or doctor places the sensor against your skin. Once it’s in place, an image appears on a video screen, and the technician or doctor moves the sensor up and down along your leg – from the groin to the calf – to view the veins from different angles. The examiner presses the sensor into your skin firmly every few inches to see if the veins change shape under pressure. He or she then checks your other leg in the same way. As the machine measures the blood flowing through a vein, it makes a swishing noise in time with the rhythm of your heartbeat. This test usually takes 15-30 minutes.Most people don’t feel any discomfort, but if your leg was swollen and sensitive to the touch before the test, the pressure of the sensor might cause some tenderness.
There are no risks.
Must you do anything special after the test is over?
How long is it before the result of the test is known?
A radiologist reviews a videotape of your ultrasound and checks for signs of blockages in the veins.Your doctor should receive a report within a few hours to a day.