A venogram is a type of imaging procedure. It uses X-rays and a special dye to look at veins in your body. The dye is called a contrast material. An X-ray is a picture of the inside of your body. Low levels of radiation create the image.
Why a venogram is done
A venogram is often done to find blood clots in the veins. It can help diagnose deep vein thrombosis. That’s when blood clots occur in a deep vein, often in your legs. It is also done to find other problems related to the veins. These include varicose veins, a vein defect, or the narrowing of a vein.
How a venogram is done
This procedure is often done on an outpatient basis. That means you can go home afterward. During the procedure:
You will lie down on an exam table. The table may tilt to help the dye move through your body.
You may be given medicine so you don’t feel any pain.
A healthcare provider will put a catheter, or needle, into one of your veins. The location depends on which body part is being X-rayed.
He or she will inject the dye into your vein.
X-rays are taken as the dye moves through your body.
You may be asked to hold your breath during the procedure.
Risks of a venogram
Allergy to the dye
October 07, 2017
Gillespie DL, et al. Venography. In: Cronenwett JL, editor. Rutherford's Vascular Surgery. 8 ed. Philadelphia: Saunders; 2014. p. 307-24., Grant BJB. Diagnosis of suspected deep vein thrombosis of the lower extremity. Up To Date. February 2 ed: Up To Date; 2015. p. 27., Zhang S, et al. Varicose Veins: Diagnosis, Management, and Treatment. Journal for Nurse Practitioners. 2014 June 1;10(6):417-24.
Grossman, Neil, MD,Ziegler, Olivia, MS, PA