Calcium Scoring is used to help determine the amount of calcium in the arteries of your heart. Used with other tests to help evaluate your heart, It is usually performed using a CT scan of your heart. Your calcium score gives doctors an idea of how much plaque there is in your heart arteries that hasn’t caused problems yet. Your calcium score may help predict your risk of a heart attack, and tell you and your doctor how much more aggressive you should be to reduce your risk factors. This is particularly helpful if you are at “intermediate” risk.