Changes

==Radiation health effects==

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Radiation exposure can lead to either tissue reactions or stochastic effects.<ref name="Pub103"/> Tissue reactions<ref name="Pub118">[[ICRP Publication 118]] ICRP Statement on Tissue Reactions and Early and Late Effects of Radiation in Normal Tissues and Organs. Ann. ICRP 41(1-2), 2012.</ref> can occur in the application of ionizing radiation in radiation therapy, and in interventional procedures, particularly when fluoroscopically guided interventional procedures are complex and require longer fluoroscopy time or acquisition of numerous images. Tissue reactions occur when many cells in an organ or tissue are killed, the effect will only be clinically observable if the radiation dose is above some threshold. The magnitude of this threshold will depend on the dose rate (i.e. dose per unit time) and linear energy transfer of the radiation, the organ or tissue irradiated, the volume of the irradiated part of the organ or tissue, and the clinical effect of interest.