AAPM Task Group Report 307: Use of EPIDs for Patient-Specific IMRT and VMAT QA

被引：0

作者：

Dogan N. ^{[1
]}

Mijnheer B.J. ^{[2
]}

Padgett K. ^{[1
]}

Nalichowski A. ^{[3
]}

Wu C. ^{[4
]}

Nyflot M.J. ^{[5
]}

Olch A.J. ^{[6
]}

Papanikolaou N. ^{[7
]}

Shi J. ^{[8
]}

Holmes S.M. ^{[9
]}

Moran J. ^{[10
]}

Greer P.B. ^{[11
,12
]}

机构：

[1] Department of Radiation Oncology, University of Miami Miller School of Medicine, Miami, FL

[2] Department of Radiation Oncology, Netherlands Cancer Institute, Amsterdam

[3] Department of Radiation Oncology, Karmanos Cancer Institute, Detroit, MI

[4] Department of Radiation Oncology, Sutter Medical Foundation, Roseville, CA

[5] Department of Radiation Oncology, University of Washington, Seattle, WA

[6] Department of Radiation Oncology, University of Southern California, and Children's Hospital Los Angeles, Los Angeles, CA

[7] Division of Medical Physics, UT Health-MD Anderson, San Antonio, TX

[8] Sun Nuclear Corporation – A Mirion Medical Company, Melbourne, FL

[9] Standard Imaging, Inc., Middleton, WI

[10] Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY

[11] Department of Radiation Oncology, Calvary Mater Newcastle Hospital, Newcastle, NSW

[12] School of Information and Physical Sciences, University of Newcastle, Newcastle, NSW

来源：

Medical Physics | 2023年 / 50卷 / 08期

关键词：

electronic portal imaging device; EPID; EPID QA; IMRT/VMAT QA; patient-specific EPID QA;

D O I：

10.1002/mp.16536

中图分类号：

学科分类号：

摘要：

Purpose: Electronic portal imaging devices (EPIDs) have been widely utilized for patient-specific quality assurance (PSQA) and their use for transit dosimetry applications is emerging. Yet there are no specific guidelines on the potential uses, limitations, and correct utilization of EPIDs for these purposes. The American Association of Physicists in Medicine (AAPM) Task Group 307 (TG-307) provides a comprehensive review of the physics, modeling, algorithms and clinical experience with EPID-based pre-treatment and transit dosimetry techniques. This review also includes the limitations and challenges in the clinical implementation of EPIDs, including recommendations for commissioning, calibration and validation, routine QA, tolerance levels for gamma analysis and risk-based analysis. Methods: Characteristics of the currently available EPID systems and EPID-based PSQA techniques are reviewed. The details of the physics, modeling, and algorithms for both pre-treatment and transit dosimetry methods are discussed, including clinical experience with different EPID dosimetry systems. Commissioning, calibration, and validation, tolerance levels and recommended tests, are reviewed, and analyzed. Risk-based analysis for EPID dosimetry is also addressed. Results: Clinical experience, commissioning methods and tolerances for EPID-based PSQA system are described for pre-treatment and transit dosimetry applications. The sensitivity, specificity, and clinical results for EPID dosimetry techniques are presented as well as examples of patient-related and machine-related error detection by these dosimetry solutions. Limitations and challenges in clinical implementation of EPIDs for dosimetric purposes are discussed and acceptance and rejection criteria are outlined. Potential causes of and evaluations of pre-treatment and transit dosimetry failures are discussed. Guidelines and recommendations developed in this report are based on the extensive published data on EPID QA along with the clinical experience of the TG-307 members. Conclusion: TG-307 focused on the commercially available EPID-based dosimetric tools and provides guidance for medical physicists in the clinical implementation of EPID-based patient-specific pre-treatment and transit dosimetry QA solutions including intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) treatments. © 2023 The Authors. Medical Physics published by Wiley Periodicals LLC on behalf of American Association of Physicists in Medicine.

引用

页码：e865 / e903

页数：38

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