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Title: Radiation Risk
题目:放射性检查的危险
Author 作者:Rob Rogers
Be afraid....be very afraid.... 谨慎。。。再谨慎。。。
Risk is based on acute exposure and is extrapolated largely from atomic bomb survivors.
危险主要是基于急性暴露,大部分的结论来源于原子弹爆炸的生存者。
Effective radiation dose = Sievert (Sv)
有效放射量=希沃特(Sv)
Adults 成人:
Lifetime Attributable Risk of Cancer 1:1000 at 10mSv
10mSv导致一生中癌症发病率为1:1000
Lifetime Attributable Risk of Cancer Mortality 1:2000 at 10mSv
10mSv导致一生中癌症死亡率为1:2000
Risk is Cumulative
危险程度是有累加效应的
Pediatrics 儿童:
Lifetime Attributable Risk of Cancer is greater than for adults and is age-dependent
导致一生中癌症的发病率要比成人高,并与年龄相关
Lifetime Attributable Risk of Cancer Mortality 1:1000 at 10mSv
10mSv导致一生中癌症死亡率为1:1000
Common Effective Dose Estimates (mSv)
常见有效剂量的估计值(mSv)
Background radiation 宇宙辐射 3.5/year 3.5/年
CXR 胸片 0.1
CT
Head, Face 头,面 2
Neck, Cervical Spine 颈部,颈椎 2
Chest, Thoracic Spine 胸部,胸椎 8
Abdomen 腹部 7.5
Pelvis 盆腔 7.5
Abdomen/Pelvis, Lumbar Spine 腹部/盆腔,腰椎 15
Extremity 肢体 0.5
Note that it doesn't take very much radiation to reach the 10 mSv level!
请注意,并不需要接受太多的射线就可达到10mSv的水平!
Bottom line: CT if you need to, but carefully consider whether it is worth it or not
要点:如有必要,可做CT,否则的化,需要仔细考虑其意义