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KMID : 1151820190130060889
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Journal of the Korean Society of Radiology
2019 Volume.13 No. 6 p.889 ~ p.894
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Analysis of Radiation Dose for Lens, Thyroid Gland, Breast, and Gonad on Upper Gastrointestinal Series
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Lim Byung-Hak
Chon Kwon-Su
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Abstract
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Upper gastrointestinal series is an examination that uses X-rays. It is important to defend against exposure to radiation during upper gastrointestinal examination because the organs, such as thyroid gland, lens, breasts, and gonads, with relatively high biological sensitivity to radiation are distributed on the examination area. We have made a whole body phantom that can change the depth of organs. radiation dose of eye, thyroid gland, breast and gonads were measured by the same procedure as the actual upper gastrointestinal examination. When performed only fluoroscopy the mean dose reduction of lens, thyroid gland, breast and gonads was 62.2%. The mean dose reduction of lens, thyroid gland, breast and gonads was 59.0% when both fluoroscopy and spot shoot were performed. Therefore, when performed upper gastrointestinal examination it was confirmed that shielding of the lens, thyroid gland, breast and gonads was effective in decreasing the exposure dose. The manufactured human phantom can be used in measuring radiation dose for deep organ because it can adjust the height corresponding to the organs located in the human body.
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KEYWORD
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Upper Gastrointestinal Series, Exposure Dose, Shield
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