Using a special state-of-the-art, high-speed CT scanner,we look inside the heart and its arteries for calcium build-up. This proven technology measures and scores the amount of calcium in the coronary arteries and helps determine your risk for heart disease. Other traditional exams, such as treadmill stress tests, help to detect restrictions of blood-flow, whereas a Heart Scan views the amount of calcium in the coronary arteries. This test is safe, painless and takes less than 30 minutes.