The study of 3DCRT plan for hepatic tumors
- VernacularTitle:肝部肿瘤三维立体定向适形放疗计划设计探讨
- Author:
Xiaofen XING
;
Meijing ZHANG
;
Ruisong GUO
- Publication Type:Journal Article
- Keywords:
Hepatic tumors;
3DCRT plan
- From:
Cancer Research and Clinic
2001;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the 3D CRT plan for hepatic tumors. Methods The 3DCRT plan of 50 cases of primary or metastasis hepatic cancer were designed according to the request of the doctors for CTV and the restricted receiving dose of the peripheral normal sensitive organs. The best plan was chosen referring the dose-volume histogram. Results By using ICRU dose reference point (the central point of tumor) as the dose 100 % and 80 % ~ 90 % dose line can be surrounded above 90 % of the PTV(planning tumor volume). The degree of 90 % dose line surrounding PTV was related to the scope of target area and its location. Conclusion The focus in different localization can be treated with different design when devise the treatment plan of the hepatic tumors. The reaction to radiotherapy was directly influenced by the volume of dosage of radiation to the normal hepatic tissues, and it also had great influence to the choice of prescription dose and the dose division style.
