1224 / 1708
Are low dose really of concern ?
What is low dose ?
Defined by the academy of
science biological effect of ionizing radiation (BEIR )
based of life span of Bomb A survivor except breast and
thyroid (which are based on medically exposed cohort )
For epidemiologist :
• low dose is< 2gy(mainly estimated on Bomb A survivors)
• High dose is > 5gy
• Low dose given by IMRT are in fact high dose for
analysis