Diagnostic Imaging, Inc.

Services - Interventional Radiology

Deep Vein Thrombolysis

1. A needle is placed into the vein where a special wire is inserted and maneuvered to the location of the blood clot.
2. The Trellis® Catheter is threaded over the wire and advanced through the clot.
3. Two tiny balloons are then inflated at each end of the clot and a declotting medicine is administered.
4. The Trellis® wire that spans the clot between the 2 balloons is activated by a small motor, dispersing the clot.
5. After the clot is dispersed it is aspirated out of the vein through the catheter.
6. The balloons are deflated and the Trellis® catheter and wire are removed once the procedure is completed.

Deep Vein Thrombolysis Using the Trellis® System

Deep Vein Thrombosis, otherwise known as DVT, is the formation of blood clots in the deep veins of the legs, arms and pelvis. There are 3 main causes of DVT – changes in blood flow or volume as can occur in patients who are on prolonged bed rest or recovering from surgery, changes in the blood vessel as can occur when the blood vessel in subjected to injury, and changes in blood composition due to certain medications, medical conditions or dehydration.

DVT may be treated using a regimen of anticoagulant medications or by directly dissolving the clot at its location by injecting declotting medication through a catheter that is fed into the clot. This is called thrombolysis.

DII offers several different methods of thrombolysis, including catheter infusion as well as the latest in state-of-the-art techniques which employs the Bacchus Vascular Trellis® System. Our interventional radiologists are trained in the use of this new, innovative, and effective system.

How does the Trellis® System work?

The radiologist inserts a needle into your vein. Through that needle, he/she threads a thin wire through the vein to the location of the clot. Over that wire, the Trellis® catheter is fed so that it runs through the blood clot. Once in position, 2 tiny balloons are inflated at each end of the clot to stabilize it and prevent pieces of it from flowing through the blood stream. Then, as the radiologist begins to administer the declotting medication through the catheter, he/she activates the Trellis® dispersion wire that is situated through the clot and between both balloons. As the clot is dispersed or dissolved, the remaining clot material is aspirated back through the catheter.

What is the recovery period for this procedure?

Recovery periods vary and are dependant on the patient’s overall medical health, but many patients are able to go home the day after the procedure.

What method of deep vein thrombolysis is right for me?

Your doctor will determine the best method of treating your blood clot after careful consideration of your medical history and the type and location of the clot.

To see an animation of this procedure, click here.

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