Various new technologies are available in cardiology. Despite all technological options the patient must not be forgotten. Which diagnostics are really beneficial for him? Specially invasive or semi-invasive procedures should be seriously reconsidered in front of an honest risk-benefit analysis. On this basis there is the need for an absolutely harmless diagnostic method providing results that can significantly contribute to the decision of therapy. With its Apollo CXS MFI system BMDSys provides the technology to reach this goal.