Analysis on Quality Control of Conformal Radiotherapy for Nasopharyngeal Carcinoma
- VernacularTitle:鼻咽癌三维适形放射治疗中质量控制的分析
- Author:
Xin LIN
;
Yongquan MA
- Publication Type:Journal Article
- Keywords:
conformal radiation therapy;
nasopharyngeal carcinoma;
linear accelerator
- From:
Chinese Medical Equipment Journal
2003;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the quality control of the conformal radiotherapy for nasopharyngeal carcinoma. Methods Using BJ-6 6MV linear accelerator, STAR -2000 3D TPS and immobilization device, the patient of nasopharyngeal carcinoma were treated by the conformal radiotherapy. Results Adopting individualized compatibly-shaped face masks and CT scanning (2mm interval, 2mm thickness), three dimensional data of the target and the other tissues were acquired. The conformal radiotherapy was designed in planning system. At the treatment, the target volume was put on the isocenter of the linear accelerator by the customized patient positioning. Conclusion Because the nasopharyngeal carcinoma is located in a special area and it is surrounded by some important organ, in the conformal radiotherapy, the quality control of the CT immobilization technique and the customized patient positioning is very important. This can ensure effective and safe irradiation for the small target volume while excessive irradiation is avoided in other surrounding organs.
