At Advanced Vein Center, we use state-of-the-art technology to examine your venous system. Our 2016 Philips Affiniti ultrasound machine produces superior quality imaging for the most accurate diagnosis. We provide a variety of ultrasound tests, which include but are not limited to deep vein thrombosis (DVT), venous reflux exam, ultrasound guided sclerotherapy and ankle brachial index (ABI).
DEEP VEIN THROMBOSIS EXAM (DVT)
The DVT exam is used to assess the deep veins of the lower legs. We utilize this exam after all ablation procedures to document closure of the saphenous (superficial) veins and to ensure that thrombus does not enter into the deep veins. The DVT exam is also used for symptoms of pain, tenderness, and swelling.
ULTRASOUND GUIDED SCLEROTHERAPY
At Advanced Vein Center, we use ultrasound guidance for treatment of sclerotherapy. Ultrasound creates images of the vessel to be treated and helps us guide the needle to its precise location during treatment.
VENOUS REFLUX EXAM
The Philips Affiniti ultrasound machine is highly sensitive in detecting reflux (backwards blood flow) within the superficial venous system. We first rule out deep vein pathology by performing a bilateral DVT exam. Next, the patient stands while we scan the superficial venous system. The superficial venous system includes but is not limited to the great saphenous vein (GSV) and short saphenous vein (SSV). The purpose of the exam is to identify incompetent valves within the superficial veins that are causing the patient’s symptoms. Generally, the valve in the upper portion of the great saphenous vein is the cause for lower leg symptoms. The following pictures are a demonstration of what is typically seen in the proximal GSV:
From left to right: The great saphenous vein is measured. Generally a measurement greater than 4mm is abnormal. The second pictures is demonstrating reflux through the valve. The reflux is visualized as red. Although it is normal to see a flash of red/ reflux it should be less than 1 second. The third picture has a measurement of the amount of reflux in milliseconds.
The images above depict the same scenario but this time in the saphenous vein approximately 3 cm from the junction of the saphenous vein. This information is critical to obtaining insurance pre-authorization.
ANKLE BRACHIAL INDEX (ABI)
With ultrasound, we have the ability to screen for peripheral vascular disease. The distal posterior tibial artery (the artery at the inner ankle) is located with ultrasound. Using spectral and color doppler imaging, we can measure the peak systolic velocity. A blood pressure cuff is then placed on each calf and inflated to obtain pressure in the lower ankle. The blood pressure in the lower ankle is divided by the pressure in the arm. This determines specific characteristics of your arterial blood flow and allows us to begin plans for treatment.