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KMID : 1164220050170020095
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Journal of Korean Society for Radiotherapeutic Technology
2005 Volume.17 No. 2 p.95 ~ p.103
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Body Stereotatic Radiosurgery Procedure of Base on Image Guided
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Choi Yun-Kyeung
Lee Doo-Hyeon
Cho Jung-Keun
Kim Jong-Won
Youm Doo-Seok
Kim Tae-Yoon
Choi Gye-Sook
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Abstract
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Purpose : In the radiosurgery, to obtain CT image to find more accurate tumor position during respiration, and using them, to increase the accuracy of radiation treatment by applying image guided.
Materials and Methods : Using the self-made vacuum cushion for the body SRS, CT images were obtained three for each patient during respiration (shallow, inhalation, exhalation). They were transformed to the RTP computer and then were fused. Global GTVs were delineated on the fused images and more appropriated treatment planning was established.
Results : We can find the tumor position is moving toward cranio-caudal with max 10 mm margin and volume is transformed. As a result from the comparision of DVH (pre & post radio surgery), we observed about 100% dose to tumor.
Conclusion : BSRS was skeptical due to the tumor movement during respiration. More accurate by the combination of the development of immobilization devices and BSRS based on Image Guide, it will be applied to more cases for BSRS.
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KEYWORD
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BSRS Vacuum cushion, image guided, fusion, BSRS
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