6）血管内治療における放射線防護(シンポジウム 血管内治療の進歩, 第563回新潟医学会)

Both knowledge of the radiological protection and attention to it are indispensable for physicians performing endovascular treatment to avoid occurrence of radiation injuries. The system of radiological protection is recommended by the International Commission on Radiological Protection: justification, optimization, and individual dose and risk limits. Measured radiation dose in 12 patients who underwent neuroradiological endovascular treatments in the Niigata University Hospital ranged from 0.3Gy to1.9Gy, which was lower than the threshold dose for temporal epilation (3～5Gy), or cataract (2Gy). However, the principle of ALARA (as low as reasonably achievable) should be kept in any procedures of endovascular treatment to minimize the stochastic effect without a threshold, such as an effect on leukemia or genetic damage.