Medical Physics International
نویسندگان
چکیده
Radiotherapy employs high energy radiation for the purpose of cancer treatment. Precise patient positioning is essential with the current use of complicated treatment plans. Portal imaging is often used for pre and during treatment anatomical setup verification. Currently the most advanced and widely used amorphous silicon Electronic portal imaging device (EPID) (aSi 1000) and the TrueBeam linear accelerator (LINAC) from Varian medical systems were used here for the measurements. Regular QC (quality control) of the EPID with the use of PTW QC phantom to monitor its performance was performed. Instead of EPIDs main purpose in the department, it was aimed to implement it for a fast and efficient way to perform pre-treatment sophisticated treatment plan QAs (quality assurances). EPIDs spatial resolution and features made them well suited for dosimetric purposes. The treatment plans analyzed include flattened (FF) and flattening filter free (FFF) beams with the TrueBeam LINAC capability of delivering
منابع مشابه
Proceedings of the First MEFOMP International Conference of Medical Physics: November 2-4, 2011, Shiraz, Iran
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