Venous ultrasound tests are very dependent on the person doing the test. I have personally evaluated dozens of patients who had an ultrasound at outside imaging centers and I repeat all of them. Not all sonographers are adequately trained or qualified to perform venous reflux tests. While it is impossible to be 100% sure about any particular sonographer, it is good to know that the person performing the test is an RVT (registered vascular technologist). This means they are specifically trained to identify if you have a problem with your circulation.Another thing to consider is the training and qualifications of the physician that will be treating you. Vascular surgeons have been dealing with the treatment of varicose veins longer then any other type of specialist and seeing a board certified vascular surgeon likely improves your chances of being accurately diagnosed and appropriately treated. Remember this disease is a disorder of your circulation and not just a cosmetic issue so take it seriously.When it comes to your veins, let your symptoms be your guide. If you are told you have 6 veins that need EVLT and your legs feel great (normal) with no swelling after two EVLTs, that may be all you really need.