Interventional cardiology involves the use of imaging and diagnostic tools to monitor coronary disorders in heart patients. A cardiologist is a physician who treats disorders of the heart. An interventional cardiologist evaluates blood flow and blood pressure in the heart valves using imaging tools and equipment and other diagnostic techniques. These tests and monitoring devices, sometimes combined with medication, help the cardiologist treat patients with heart valve disorders, coronary artery disease, endocarditis, and other heart conditions.

Doctor density varies by specialty and location. Illinois has 340 practicing interventional cardiologists. Broken out by city, interventional cardiology doctor density in Waterloo is 1, in West Frankfort is 1, in Winfield is 10, in Winnetka is 1, in Wood Dale is 1, and in Woodstock is 2.

Most people think that Chicago, because of its size and popularity, is Illinois’ capital city, but that distinction belongs to Springfield, home of the Abraham Lincoln Museum. Illinois has hundreds of museums, numerous yearly art and ethnic festivals, a lakeshore bordering Lake Michigan, and the many national forests and parks that offers visitors camping, horseback riding, biking, kayaking, and fishing. Chicago is home to the Sears Tower, the Shedd Aquarium, the Art Institute of Chicago, the Adler Planetarium, the Museum of Science and Industry, and other cultural opportunities and restaurants in the Navy Pier area.

According to 2005 Census estimates, Illinois has a population of 12,763,371. Of this population, 3,172,677 are under the age of 18 and 1,523,937 are at or above the age of 65.