Preventing myocardial infarction: use and limitation of non-invasive imaging modalities.

Identifying patients at high risk of coronary events is the main focus of cardiovascular prevention. For primary prevention score and risk cards are very low cost solutions, but only of limited efficacy, thus justifying the use of non-invasive imaging testing for the purpose of increasing the 'diagnostic gain'. Considering all the diagnostic tests employed, only few demonstrated significant additional contribution to the risk score stratification. Coronary imaging with high speed volumetric computed tomography can provide essential information in ruling out and/or definition of coronary artery disease but also has limitations as far as the biological risk, the costs, and the difficulties of putting into perspective the results obtained in asymptomatic patients.