Cardiac transplantation has become an important treatment option in terminal cardiac disease since the introduction of cyclosporin A for immunosuppression. Imaging methods play an important role in the diagnosis of all complications occurring after heart transplantation except for the transplant rejection reaction; endomyocardial biopsy is in continued use as none of the diagnostic imaging methods is able at present to diagnose rejection with sufficient accuracy. However, new imaging modalities that are only just starting to be widely used may change this in the foreseeable future.