The emanation exposes estimate cancer risk

The American researcher thinks after building the emanation of copying the Shu expose related cancer-causing risk to carry on analysis to the CT coronary artery, emanation revelation and cancer the whole life return because of dangerous degree relevant.
The calculator body layer photographs a coronary artery to build shadow Shu(CTCA) to have become in common use diagnosis means, but it the related cancer-causing risk data is few.In a CATA research, the electricity leaves radiation biology effect(BEIR) VII two expected to report to provide the emanation radiation the whole life returning of the revelation cancer incidence rate because of the valuation frame of dangerous degree(LAR).
Study a purpose to lie in make sure a thin layer of 64 rows CATA the related emanation expose a cancer outbreak of LAR and evaluate age, sex and scan operation step's etc. to take place risk to the cancer of influence.
According to receiving the card Luo imitates calculate way and standard spiral CT to operate a step especially, to organ irradiation the quantity is from 64 rows thin layer CATA arrive standard model(calculation model) the male and female sufferer carry on valuation.The applied BEIRVII method evaluates single age and sex particularity LAR of the cancer, and mutually take into to compute whole body LAR.Lung department and female breast irradiation quantity's distinguishing be 20 years old for 42-91 mSvs, 50-80 mSv.s female and 80 years younger old age male estimate project light upon related the whole life cancer risk distinguish are 1143, 13261, application imitate heart electricity this risk for door to control technique(ECTCM) decline to 1 respectively 219 and 15017, but 60 years old male and 60 years old female sufferers estimate cancer risk distinguish are 1715 with 11911.LAR is higher while scanning heart and aorta in the meantime, the 20 years old female sufferer is 1114.Total say come, organ LAR is tallest to is a lung cancer, young female is mammary glands cancer.
Above emulation model result expresses that 64 rows thin layer CTCA applications have something to do with cancer LAR, this kind of risk can not neglect and difference very big, the female, young sufferer, heart and aorta unite and scan risk and show Zhao and increase Gao.