[Film dose analysis system and its application in radiotherapy verification].
OBJECTIVE
To propose a new computer software-based medical image processing technique with high resolution digital scanner for radiotherapy verification.


METHODS
Under the platform of Windows 2000, the software, programmed with Visual C++.NET, was developed according to modular design. All data of the films and the treatment planning system could be processed as images or dose curves for a robust result.


RESULTS
Many functions such as data acquisition, automatic analysis and computation and image processing were integrated in the system. Both geometric and dosimetric errors could be calculated at the same time to verify the radiotherapy accuracy.


CONCLUSIONS
This system has good accuracy and stability for cost-effective radiotherapy verification.
Wang
Shun-guan
SG
Department of Radiotherapy, Second People's Hospital of Guangdong Province, Guangzhou 510317, China.
Hong
Wen-song
WS
Cai
Chang-qing
CQ
D005373:Film Dosimetry / Q000295:instrumentation*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D011879:Radiotherapy Dosage / Q000592:standards; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012984:Software