Lower Extremity Venography
Venography for legs is a test used to see the veins in the leg.
Veins are not normally seen in an x-ray, so a special dye is used to highlight them. This dye is called contrast.
Phlebogram - leg; Venography - leg; Angiogram - leg
How the Test is Performed
This test is usually done in a hospital. You will be asked to lie on an x-ray table. A numbing medicine is applied to the area. You may ask for a sedative if you are anxious about the test.
The health care provider places a needle into a vein in the foot of the leg being looked at. An
X-rays are taken as the dye flows through the leg.
The catheter is then removed, and the puncture site is bandaged.
How to Prepare for the Test
You will wear hospital clothing during this procedure. You will be asked to sign a consent form for the procedure. Remove all jewelry from the area being imaged.
Tell the provider:
- If you are pregnant
- If you have
allergies to any medicines
- Which medicines you are taking (including any herbal preparations)
- If you have ever had any
allergic reactionsto x-ray contrast material or iodine substance
How the Test will Feel
The x-ray table is hard and cold. You may want to ask for a blanket or pillow. You will feel a sharp poke when the intravenous catheter is inserted. As the dye is injected, you may experience a burning sensation.
There may be tenderness and bruising at the site of the injection after the test.
Why the Test is Performed
This test is used to identify and locate
Free flow of the blood through the vein is normal.
What Abnormal Results Mean
Abnormal results may be due to a blockage. The blockage can be caused by:
Risks of this test are:
- Allergic reaction to the contrast dye
- Kidney failure, especially in the older adults or people with diabetes who take the medicine metformin (Glucophage)
- Worsening of a clot in the leg vein
There is low radiation exposure. However, most experts feel that the risk of most x-rays is smaller than other daily risks. Pregnant women and children are more sensitive to the risks of the x-ray.
Ginsberg JS. Peripheral venous disease. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 81.
Pin RH, Ayad MT, Gillespie D. Venography. In: Sidawy AN, Perler BA, eds. Rutherford's Vascular Surgery and Endovascular Therapy. 9th ed. Philadelphia, PA: Elsevier; 2019:chap 26.
Review Date: 06/10/2018
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