Imaging is crucial for establishing the diagnosis of DCM, as well as for risk stratification, patient management, and treatment monitoring. DCM can have very diverse clinical outcomes, ranging from LV reserve remodeling and recovery of systolic function to acute heart failure, arrhythmias, or SCD. Thus, the therapeutic management of DCM patients necessitates a constant update on the underlying cardiac structural and functional status. Cardiac Magnetic Resonance (CMR) has emerged as a fundamental tool for diagnosis, risk stratification, and management of DCM patients. CMR not only represents the gold standard for an accurate and reproducible assessment of ventricular volumes and function, but it is also the only technique that provides noninvasive tissue characterization. Using imaging techniques such as LGE and qualitative/quantitative parameters including T1 mapping, T2 mapping, and T2* mapping, tissue characterization is useful in the differential diagnosis of secondary causes of DCM and in the assessment of the probability of LVRR with a potential role in guiding individualized treatment strategies