All medical exposures must be subject to the principles of justification and
optimization of radiological protection, which are common to all practices dealing
with potential exposures of humans to ionizing radiation.The practice involving exposure to
radiation must be justified in principle through the endorsement of relevant
professional societies, as matters of effective medical practice will be central
to this judgement.In addition to the requirements of optimization of radiological protection,
the concept of optimization of clinical practice in diagnostic radiology must