Minimum Education: Registered by one or more of the following, the American Registry of Radiologic Technologists, ARDMS, Echocardiography (RDCS), Vascular technologist (RVT),Cardiovascular Credentialing International CCI, Cardiac Sonographer (RCS) OR graduate of an accredited cardiography/vascular school. The Echocardiography Tech (Echo Tech/Cardiac Sonographer) performs diagnostic echocardiograms for subsequent evaluation and treatment by admitting, attending, or consulting physician.