When I had an ultrasound done on my legs, they used is the same kind of device that they use to check your breasts. They run this device up and down the veins of your legs to make sure that all the veins are okay. It took about 10 to 15 minutes, it was actually REALLY easy, there's nothing to it. Please let me know how it goes. Good luck!! If you need to know anything else, please let me know, I'd be more than happy to help!