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간암에서 호흡주기를 고려한 2-차원 방사선 치료 방법과 3-차원 입체조형 치료방법에서 방사선 간염 예측의 비교연구

Other Titles
 Comparative Study Between Respiratory Gated Conventional 2-D Plan and 3-D Conformal Plan for Predicting Radiation Hepatitis 
Authors
 이상욱  ;  김귀언  ;  정갑수  ;  이창걸  ;  성진실  ;  서창옥 
Citation
 Journal of the Korean Society for Therapeutic Radiology and Oncology (대한방사선종양학회지), Vol.16(4) : 455-468, 1998 
Journal Title
 Journal of the Korean Society for Therapeutic Radiology and Oncology (대한방사선종양학회지) 
ISSN
 1229-8719 
Issue Date
1998
Abstract
Purpose : To evaluate influences associated with radiation treatment planning obtained with the patient breathing freely. Materials and Methods : We compared reduction or elimination of planning target volume (PTV) margins with 2-D conventional plan with inclusion of PTV margins associated with breathing with 3-D conformal therapy. The respiratory non gated 3-D conformal treatment plans were compared with respiratory gated conventional 2-D plans in 4 patients with hepatocellular carcinomas. Isodose distribution, dose statistics, and dose volume histogram (DVH) of PTVs were used to evaluate differences between respiratory gated conventional 2-D plans and respiratory non gated 3-D conformal treatment plans. In addition. the risk of radiation exposure of surrounding normal liver and organs are evaluated by means of DVH and normal tissue complication probabilities (NTCPs). Results : The vertical movement of liver ranged 2-3 cm in all patients. We found no difference between respiratory gated 2-D plans and 3-D conformal treatment plans with the patients breathing freely. Treatment planning using DVH analysis of PTV and the normal liver was used for all patients. DVH and calculated NTCP showed no difference in respiratory gated 2-D plans and respiratory non gated 3-D conformal treatment plans. Conclusion : Respiratory gated radiation therapy was very important in hepatic tumors because radiation induced hepatitis was dependent on remaining normal liver volume. Further investigational studies for respiratory gated radiation.
Files in This Item:
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
Yonsei Authors
Seong, Jin Sil(성진실) ORCID logo https://orcid.org/0000-0003-1794-5951
Lee, Chang Geol(이창걸) ORCID logo https://orcid.org/0000-0002-8702-881X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/176549
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