You will lie on the x-ray table, generally flat on your back. You may also have a monitoring device attached to your chest and finger.
The Interventional Radiologist will keep everything as sterile as possible and will wear a theatre gown and operating gloves. The skin near the point of insertion, probably the groin, will be cleaned with antiseptic and then most of the rest of your body covered with a theatre towel.
The skin and deeper tissues over the vein will be anaesthetised with local anaesthetic (see below) and then a needle will be inserted into the vein. Once the Interventional Radiologist is satisfied that this is correctly positioned, a guide wire is placed through the needle and into the vein. Then the needle is withdrawn and a fine plastic tube, called a catheter, is placed over the wire and into the vein. This catheter has the filter attached to it.
The Interventional Radiologist uses the x-ray equipment to make sure that the catheter and the wire are moved into the right position. The wire is then withdrawn and the filter can be released from the catheter and left in place in the Vena Cava.
The catheter will then be removed and the Interventional Radiologist will press firmly on the skin entry point for several minutes to prevent any bleeding.
Your Interventional Radiologist will ask you to keep quite still while the injection is given.
You may notice a warm tingling feeling as the anaesthetic begins to take effect.
Your procedure will only go ahead when you and your radiologist are sure that the area is numb.
If you are not having sedation, you will remain alert and aware of your surroundings.
Your Interventional Radiologist is always near to you and you can speak to him/her whenever you want to.