The Cardiovascular Credentialing International (CCI) credential Registered Vascular Specialist (RVS) credential holds equivalent recognition to the American Registry of Diagnostic Medical Sonography (ARDMS) Registered Vascular Technologist (RVT) credential. As of September 2019, over 4,000 individuals hold an active RVS certification and over 25,000 individuals are credentialed across CCI’s nine certification programs.