Venography - Blood Flow Examination Of Veins

: Admin : 2021-11-01

Venography is a type of x-ray that employs a contrast material injection to show how blood flows through your veins. It may be used by your doctor to detect blood clots, select a vein for use in a bypass or dialysis technique, or check varicose veins prior to surgery.

What is the procedure for venography?

• This test will most likely be performed as an outpatient procedure by your doctor.
• Venography can be done in the x-ray department or in an interventional radiology suite (also known as a special procedures suite).
• You'll be lying down on an x-ray table. The table may be in a standing position depending on the body component being examined (e.g., the legs). You will be fastened with safety straps if the table is relocated during the treatment.
• To inject the contrast agent, the physician will use a needle or catheter to enter a vein. The location of the needle is determined by the part of your body where the veins are being examined. Several x-rays are taken as the contrast material travels through the veins being investigated. You might be moved around to allow the x-rays to obtain photographs of your veins from different angles. 

Venography can be performed in a variety of ways:

• Ascending Venography detects a DVT and determines where it is located in your vein.
• Descending venography examines the condition of your deep vein valves.
• Venography of the upper extremities examines your neck and armpits for blockages, blood clots, or other vascular disorders.
• Venacavography is a procedure that examines the inferior or superior vena cava. 

What is the purpose of venography?

Venography is performed to confirm a DVT diagnosis. 

It can also be used to determine whether a vein problem is caused by a blood clot or another type of blockage. 

It can be used to check for congenital venous issues or to locate a vein for bypass graft surgery. 

It could be utilised to figure out what's causing leg swelling or pain. 

It can also be utilised to determine the origin of a blood clot that has gone to the lungs (pulmonary embolism).