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KMID : 1151820200140050661
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Journal of the Korean Society of Radiology
2020 Volume.14 No. 5 p.661 ~ p.668
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Dose Assessment during Pregnancy in Chest PA Examination
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Woo Ri-Won
Cho Yong-In
Kim Jung-Hoon
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Abstract
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One of the causes of death for pregnant female is embolism, when a chest PA examination is performed. In addition, due to small doses, the examinations are performed for the purpose of preparing for pre-delivery emergency surgery or basic examination for pregnant female. Evaluating fetal doses through actual measurements is subject to ethical problems, Monte Carlo simulations assesses the organ and fetal doses of pregnant females according to week of pregnancy. The results of the simulations showed that the fetal dose decreased according to weeks of pregnancy and it showed a dose of about 0.1 mGy. The higher the density and thickness of the shielding material, the better the shielding effect. In addition, the dose reduction effect for each shielding material is between 40 and 98%. Afterwards, it is deemed necessary to study the reduction of fetal doses through various shielding characteristics and methods.
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KEYWORD
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X-ray, Fetal dose, Pregnant, Shield, Mcnpx
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