[A new method for static intensity-modulated radiation therapy].
OBJECTIVE
To develop a new method for static intensity-modulated radiation therapy (IMRT) possible for implementation in smaller hospitals by incorporating accurate location equipments and treatment planning system in the available equipments for general radiotherapy.


METHODS
Based on the techniques of conformal radiotherapy, a new split method for fabricating the three-dimensional physical compensator was developed to achieve IMRT.


RESULTS
Experiment with the new method showed that the fabricated compensator could achieve good match between the high dosage shape in the target area and the dimensions of the tumor, and allowed adjustment of the dosage distribution according to the therapeutic requirement.


CONCLUSIONS
This simple and feasible method allows cost-effect application of IMRT in smaller hospitals.
Chen
Chao-min
CM
Department of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China. gzccm@fimmu.com
Zhou
Lin-hong
LH
Lü
Qing-wen
QW
Jin
Hao-yu
HY
Tang
Mu-tao
MT
Chen
Guang-jie
GJ
D006801:Humans; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D020266:Radiotherapy, Conformal / Q000295:instrumentation* / Q000379:methods*