Application of Whole Body Localization Technique in the Craniospinal Intensity-modulated Radiotherapy
10.3969/j.issn.1671-7104.2017.04.019
- VernacularTitle:全身定位技术在全脑全脊髓调强放疗中的应用研究
- Author:
Haifang YANG
1
;
Jianping LIU
;
Xiaobin ZHANG
;
Xiuju SHI
;
Bin JIANG
;
Shouping XU
;
Jing WANG
Author Information
1. 河北省唐山市人民医院放疗中心
- Keywords:
whole body localization;
field convergence;
BDPC;
the craniospinal radiotherapy
- From:
Chinese Journal of Medical Instrumentation
2017;41(4):302-305
- CountryChina
- Language:Chinese
-
Abstract:
The craniospinal radiotherapy method was studied by using the whole body positioning frame and base dose plan compensation (BDPC) technique.11 patients with central nervous system malignancies in our hospital were studied. Use whole body positioning frame with the head - neck shoulder and body membrane to immobilize posture, then use BDPC for the intensity-modulated radiotherapy. Target area conformability index(CI), homogeneity index (HI), dose of endangerment organ (OAR) and beam connecting dose distribution are evaluated. The use of base-dose-compensation intensity-modulated plan combined with whole-body positioning technology improves the target area conformability and target uniformity, simplifies the design of craniospinal radiotherapy, improves the placement accuracy and ensure good placement repeatability. We measure beam connecting dose distribution. Cold and hot spots do not appear, and calculated values are basically identical. The application of whole-body positioning technique combined with BDPC optimization method in the treatment of the craniospinal radiotherapy meets the clinical requirements of dosimetry. Moreover, it is simple and can improve the treatment planning efficiency.
