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Last updated: 01.10.2005. |
Medical use of
ionizing radiation: benefit and risk Jenia
Vassileva, Ventzeslav Todorov (Abstract)
Diagnostic radiology, nuclear medicine and radiation therapy are three large areas of medicine that involved use of ionizing radiation. The inherent properties of ionising radiation provide many benefits but also may cause potential harm. Two categories of biological effects may be observed in irradiated persons – deterministic and stochastic in dependence of the absorbed dose to the tissues. In the practice of medicine, there must be a judgement made concerning the benefit/risk ratio. The aim of managing radiation exposure is to minimise the putative risk without sacrificing, or unduly limiting, the obvious benefits in the prevention, diagnosis and also in effective cure of diseases. The modern conception for radiation protection in medicine is based on two main principles - justification of the examination and optimization of the protection.
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