Our scan of your heart is divided into two main elements. The first, a CT Heart Scan (Calcium Score) examines your overall heart arteries for any calcium deposition. As calcium is only deposited during the process of atheroma (commonly known as ‘furring up’ of the arteries), measurement of the total amount of calcium in all the heart arteries provides the most accurate assessment of the overall extent of atheroma. Numerous long-term prospective medical studies, involving hundreds of thousands of patients, have shown this to be a very accurate assessment of the overall risk of a future heart attack. Its great advantage is that it distils all of the risk factors and genetic predisposition into an objective and quantifiable risk.