Guide for quality control and safety of external radiotherapy planning systems and treatment plans
DOI:
https://doi.org/10.37004/sefm/2024.25.1.008Keywords:
Treatment planning system, plan verification, quality assurance, initial reference state, audits, end-to-end testsAbstract
The content of the document reflects the recommendations of the SEFM for the quality control and safe use of external radiotherapy treatment planning systems. An initial exposition is presented regarding the reasons, general considerations, and main updates to be taken into account in current planning systems before proceeding to analyze in detail the characterization of treatment units and the parameters to consider in their modeling, with special emphasis on those related to the multileaf collimator.
The document is divided into three distinct sections aimed at comprehensively covering all aspects influencing the quality and safety of the treatment planning system product, the treatment plan. These sections emcompass quality control of the planning system, quality assurance of the planning process, and treatment plan verification, all while maintaining the perspective provided by the associated risk analysis.
The quality control program is established in three steps: initial reference state, periodic checks, and checks after updates. In addition to this, the planning process is analyzed, ensuring its quality through global processes such as audits and end-to-end tests, plan evaluation, and systematization related to standardization and class solutions. Finally, the document describes plan verification tools and their limitations, associated metrics, and potential verification strategies. The entire document concludes with a final chapter summarizing all recommendations based on the exposition and specifying tolerances to be used at each stage.
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