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Report No. 306 - AAPM Task Group Report 306: Quality control and assurance for tomotherapy: An update to Task Group Report 148 (2023)

Category: Reports

Since the publication of AAPM Task Group (TG) 148 on quality assurance (QA) for helical tomotherapy, there have been many new developments on the tomotherapy platform involving treatment delivery, on-board imaging options, motion management, and treatment planning systems (TPSs). In response to a need for guidance on quality control (QC) and QA for these technologies, the AAPM Therapy Physics Committee commissioned TG 306 to review these changes and make recommendations related to these technology updates. The specific objectives of this TG were (1) to update, as needed, recommendations on tolerance limits, frequencies and QC/QA testing methodology in TG 148, (2) address the commissioning and necessary QA checks, as a supplement to Medical Physics Practice Guidelines (MPPG) with respect to tomotherapy TPS and (3) to provide risk-based recommendations on the new technology implemented clinically and treatment delivery workflow. Detailed recommendations on QA tests and their tolerance levels are provided for dynamic jaws, binary multileaf collimators, and Synchrony motion management. A subset of TPS commissioning and QA checks in MPPG 5.a. applicable to tomotherapy are recommended. In addition, failure mode and effects analysis has been conducted among TG members to obtain multi-institutional analysis on tomotherapy-related failure modes and their effect ranking.

Medical Physics

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Keywords: quality assurance, tomotherapy
Task Group No. 306 - Machine and patient QA for tomotherapy: an update to TG-148 (TG306)

Quan Chen, Yi Rong, Jay W. Burmeister, Edward H. Chao, Nathan A. Corradini, David S. Followill, X. Allen Li, An Liu, X. Sharon Qi, Hairong Shi, Jennifer B. Smilowitz

Committee Responsible: Working Group on External Beam Quality Assurance

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