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Report No. 219 - Report of AAPM Task Group 219 on independent calculation-based dose/MU verification for IMRT (2021)

Category: Reports

Independent verification of the dose per monitor unit (MU) to deliver the prescribed dose to a patient has been a mainstay of radiation oncology quality assurance. We discuss the role of secondary dose/MU calculation programs as part of a comprehensive Quality Assurance (QA) program. This report provides guidelines on calculation-based dose/MU verification for intensity modulated radiation therapy (IMRT) or volumetric modulated arc therapy (VMAT) provided by various modalities. We provide a review of various algorithms for “independent/second check” of monitor unit calculations for IMRT/VMAT. The report makes recommendations on the clinical implementation of secondary dose/MU calculation programs; on commissioning and acceptance of various commercially available secondary dose/MU calculation programs; on benchmark QA and periodic quality assurance; and on clinically reasonable action levels for agreement of secondary dose/MU calculation programs.

Medical Physics

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Task Group No. 219 - Independent Dose and MU Verification for IMRT Patient Specific Quality Assurance

Timothy C. Zhu, Sotirios Stathakis, Jennifer R. Clark, Wenzheng Feng, Dietmar Georg, Shannon M Holmes, Stephen F Kry, Chang Ming Charlie Ma, Moyed Miften, Dimitris N. Mihailidis, Jean M Moran, Niko Papanikolaou, Bjorn Poppe, Ying Xiao

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