Accurate myocardial viability assessment is essential to optimize revascularization and/or medical treatment in patients with myocardial infarct. To date, cardiac magnetic resonance imaging (MRI) is the widely accepted clinical standard for visualization, characterization and quantification of myocardial viability. Multidetector computed tomography (CT) is reported by numerous authors as an emerging imaging modality for myocardial viability assessment. This review article summarizes cardiac MRI and CT modalities for myocardial viability assessment.