An Analysis of Setup Errors Using OnBoard Imager Technique in External Beam Radiotherapy for Different Cases in Radiation Oncology
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چکیده
Successful delivery of conformal fields requires stringent immobilization and treatment verification, as well as knowledge of the setup reproducibility. [1] Before coming OBI, electronic portal imaging detector was used to detect the setup errors. EPID images are not clear vision to identify correctly and immediately because they were produced by megavoltage X-ray during treatment setup. In OBI images are very easy to identify the errors because they are clear to vision and they are produced by kilovolt age X-rays from OBI system.
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