코발트-60 감마선의 다문선속에 의한 식도암치료의 선량 평가

Other Titles
Dose Evaluation of Esophageal Cancer Treatment by the Multiple Radiation Beams of Co-60 Gamma Rays
Authors
최태진김옥배서수지
Department
Dept. of Medical Biophysics Engineering(의공학과); Dept. of Radiation Oncology (방사선종양학); Dept. of Radiology (영상의학)
Issue Date
1987
Citation
Keimyung Medical Journal, Vol.6(2) : 353-357, 1987
Abstract
CT technique was used to provide tumor depth, lung thickness and tissue density for the calculation of delivered radiation dose to various points on the esophagus, spinal cord and interest points of lung tissue. In treatment planning, in the to avoid excess dose at the spinal core, we usually set the prone position of patient. The angle of the incidence beams were used for three portals : LPO, RPO and AP. The percentage depth dose changes by the inhomogeneity of various tissue structures, such as lung, mediastinum and other thoracic contents. Therefore the correction factor of 4% increase should be applied as being with 1cm of lung tissue in Co-60 gamma radiation therapy. With known accuracy of the CT representation of the RANDO section, the treatment planning was computed to predict the dose to a point in the same section which was selected as representative of normal esophagus location in the TLD measurements in the phantom studies.
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/14497
Appears in Collections:
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Medical Biophysics Engineering (의공학과)
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학)
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Radiology (영상의학)
2. Keimyung Medical Journal (계명의대 학술지) > 1987
Keimyung Author(s)
서수지; 최태진; 김옥배
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