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KMID : 1164220050170020147
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Journal of Korean Society for Radiotherapeutic Technology
2005 Volume.17 No. 2 p.147 ~ p.153
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A Study on the Effectiveness of the Manufacture of Compensator and Setup Position for Total Body Irradiation Using Computed Tomography-simulator’s Images
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Lee Woo-Seok
Kim Dae-Sup
Park Sung-Ho
Yoon In-Ha
Back Geum-Mun
Kim Jeong-Man
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Abstract
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Purpose : We should use a computed tomography-simulator for the body measure and compensator manufacture process was practiced with TBI’s positioning in process and to estimate the availability.
Materials and Methods : Patient took position that lied down. and got picture through computed tomography-simulator. This picture transmitted to Somavision and measured about body measure point on the picture. Measurement was done with skin, and used the image to use measure the image about lungs. We decided thickness of compensator through value that was measured by the image. Also, We decided and confirmed position of compensator through image. Finally, We measured dosage with TLD in the treatment department.,
Results : About thickness at body measure point. we could find difference of cm relationship general measure and image measure. General measure and image measure of body length was seen difference of cm. Also, we could paint first drawing of compensator through the image. The value of dose measurement used TLD on head, neck, axilla, chest(lungs inclusion), knee region were measured by and abdomen, pelvis, inquinal region, feet region were measured by.
Conclusion : It was useful for TBI’s positioning to use an image of computed tomography-simulator in the process. There was not that is difference of body thickness measure point, but measure about length was achieved definitely. Like this, manufacture of various compensator that consider body density if use image is available. Positioning of compensator could be done exactly. and produce easily without shape of compensator is courted Positioning in the treatment department could shortened overall minute time. and reduce compensator manufacture time about 15 minutes.
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KEYWORD
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total body Irradiation, compensator
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