- Cardiovascular and Thoracic Surgeons of Greensboro (CVTS) is a private group of surgeons serving Greensboro and the Piedmont Triad. All members of CVTS are board-certified specialists in cardiothoracic and/or peripheral vascular surgery. We emphasize quality management of all related conditions including coronary artery disease, valvular heart disease, lung cancer and other diseases of the ...www.cvtsofgreensboro.com