In cardiovascular pathology, cardiovascular magnetic resonance (CMR) has emerged over time as a test with single potential. This non-invasive, non-irradiating, with few contraindications, and economically reasoned examination, finds all its interest in aeronautical expertise of flight crew, in addition to first-line examinations, including electrocardiogram and echocardiography, which do not always allow to decide on the absence of underlying cardiac disease, which would have a consequent impact on the decision of aptitude either in admission or revisional visit. Through this work, we will focus on the technical aspects of CMR namely: different sequences, safety, physical principles, then its main indications according to international learned societies, and finally its interest in aeronautical expertise