Where High Technology Meets Depth Of Experience. From simple aesthetic vascular treatments to life-changing surgeries, our doctors and nurse-practitioners have mastered both the techniques and the technology to provide these state-of-the art therapies and procedures. Vascular Ultrasound. This a test includes no-needles. The test “sees” your venous and arterial blood flow searching for blockages, blood clots or malfunction of the valves of your veins (also known as venous reflux). The test typically last 30 minutes. The ultrasound technician will ask you to uncover your legs from the groin down and apply topical gel to scan the blood vessels from top to bottom. The technician will also be pressing over the skin the evaluate the presence of blood clots. In case of studies for venous reflux, you would be ask standing for some period to evaluate the “leaking veins”.