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KMID : 1151820130070040259
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Journal of the Korean Society of Radiology
2013 Volume.7 No. 4 p.259 ~ p.264
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Dose Evaluation of Childhood Leukemia in Total Body Irradiation
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Lee Dong-Yeon
Ko Seung-Jin
Kang Se-Sik
Kim Chang-Soo
Kim Dong-Hyun
Kim Jung-Hoon
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Abstract
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Total body irradiation in the treatment of childhood leukemia, which is one of the pre-treatment with stem cell transplantation is being used, the current organization using compensators are treated. However, under the terms of the compensator organization long-term impact on the human body, it is difficult to assess directly. In this study, we use the mathematical simulation of radiation exposures body energy and the distance to the crew and the patient (source surface distance, SSD), and patients with tissue compensators change of the distance along the body of the organ doses were evaluated. As a result, the surface dose of energy 4 MV, SSD 280 cm, tissue compensators and the patient when the distance 30 cm 5.84 G / min showed the highest levels. In addition, patients with tissue compensators and the distance apart when 30 cm TBI represents the ideal dose distribution was found.
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KEYWORD
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leukemia, total body irradiation, MCNPX
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