 In 1990, Edward introduced a comprehensive cardiac medicine program, offering open heart surgery, diagnostic services and cardiac rehabilitation.The state's first freestanding outpatient heart center, the Edward Cardiovascular Institute, opened in 1993 and in 1998, Edward became the first healthcare facility in DuPage County to screen people for heart disease using Electron Beam CT calcium scoring (Ultra Fast Heart Scan).The 1990s also saw the opening of the Edward Cancer Center, expansion of the emergency department, opening of Edward Healthcare Centers in Bolingbrook, Illinois and Naperville, the acquisition of Linden Oaks Hospital (a full-service behavioral health facility) and the opening of the Center for Surgery in Naperville.