On using 3D γ-analysis for IMRT and VMAT pretreatment plan QA

被引：37

作者：

Wu, Chuan ^{[1
]}

Hosier, Kelly E. ^{[1
]}

Beck, Kristen E. ^{[1
]}

Radevic, Marlyn B. ^{[1
]}

Lehmann, Joerg ^{[1
]}

Zhang, Hao H. ^{[2
]}

Kroner, Aaron ^{[1
]}

Dutton, Sharon C. ^{[1
]}

Rosenthal, Seth A. ^{[1
]}

Bareng, Jonathan K. ^{[1
]}

Logsdon, Mark D. ^{[1
]}

Asche, David R. ^{[1
]}

机构：

[1] RAS, ROC, Sacramento, CA 95815 USA

[2] Univ Arizona, Dept Math, Tucson, AZ 85721 USA

来源：

MEDICAL PHYSICS | 2012年 / 39卷 / 06期

关键词：

IMRT; VMAT; 3D-Gamma; EPID; QA; MODULATED ARC THERAPY; DOSE RECONSTRUCTION; QUANTITATIVE-EVALUATION; QUALITY-ASSURANCE; EPID DOSIMETRY; PASSING RATES; VERIFICATION; BEAM; ALGORITHM; IMAGES;

D O I：

10.1118/1.4711755

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Purpose: To investigate using 3D c analysis for IMRT and VMAT QA. Methods: We explored and studied 3D c-analysis by comparing TPS computed and EPID backprojection reconstructed doses in patient's CT images. Two 3D c quantities, cPTV and c10, were proposed and studied for evaluating the QA results, and compared to 2D c (MapCheck composite: cMC). Results: It was found that when 3%(global)= 3 mm criteria was used, all IMRT and 90% of VMAT plans passed QA with a c pass rate -90%. A significant statistical correlation was observed between 3D and 2D c-analysis results for IMRT QA if c10 and cMC are concerned, but no significant relation is found between cPTV and cMC. Conclusions: 3D c analysis based on EPID dose back-projection may provide a feasible tool for IMRT and VMAT pretreatment plan QA. (C) 2012 American Association of Physicists in Medicine. [http:/dx.doi.org10.11181.4711755]

引用

页码：3051 / 3059

页数：9

共 37 条

[1] [Anonymous], 2010, ACC PLANN DOS PERT A
[2] An effective correction algorithm for off-axis portal dosimetry errors
Bailey, Daniel W.
Kumaraswamy, Lalith
Podgorsak, Matthew B.
[J]. MEDICAL PHYSICS, 2009, 36 (09) : 4089 - 4094
[3] An analysis of an implantable dosimeter system for external beam therapy
Black, RD
Scarantino, CW
Mann, GG
Anscher, MS
Ornitz, RD
Nelms, BE
[J]. INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2005, 63 (01): : 290 - 300
[4] Both S, 2007, J APPL CLIN MED PHYS, V8, P1
[5] Quantitative analysis of patient-specific dosimetric IMRT verification
Budgell, GJ
Perrin, BA
Mott, JHL
Fairfoul, J
Mackay, RI
[J]. PHYSICS IN MEDICINE AND BIOLOGY, 2005, 50 (01) : 103 - 119
[6] IMRT commissioning: Multiple institution planning and dosimetry comparisons, a report from AAPM Task Group 119
Ezzell, Gary A.
Burmeister, Jay W.
Dogan, Nesrin
LoSasso, Thomas J.
Mechalakos, James G.
Mihailidis, Dimitris
Molineu, Andrea
Palta, Jatinder R.
Ramsey, Chester R.
Salter, Bill J.
Shi, Jie
Xia, Ping
Yue, Ning J.
Xiao, Ying
[J]. MEDICAL PHYSICS, 2009, 36 (11) : 5359 - 5373
[7] Off-axis dose response characteristics of an amorphous silicon electronic portal imaging device
Greer, Peter B.
[J]. MEDICAL PHYSICS, 2007, 34 (10) : 3815 - 3824
[8] AMERICAN SOCIETY FOR THERAPEUTIC RADIOLOGY AND ONCOLOGY (ASTRO) AND AMERICAN COLLEGE OF RADIOLOGY (ACR) PRACTICE GUIDELINES FOR INTENSITY-MODULATED RADIATION THERAPY (IMRT)
Hartford, Alan C.
Palisca, Madeline G.
Eichler, Thomas T.
Beyer, David C.
Devineni, Venkata Rao
Ibbott, Geoffrey S.
Kavanagh, Brian
Kent, Join S.
Rosenthal, Seth A.
Schultz, Chris T.
Tripuraneni, Prabhakar
Gaspar, Laurie E.
[J]. INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2009, 73 (01): : 9 - 14
[9] MapCHECK used for rotational IMRT measurements: Step-and-shoot, Tomotherapy, RapidArc
Jursinic, Paul A.
Sharma, Renu
Reuter, Jim
[J]. MEDICAL PHYSICS, 2010, 37 (06) : 2837 - 2846
[10] A feasible method for clinical delivery verification and dose reconstruction in tomotherapy
Kapatoes, JM
Olivera, GH
Ruchala, KJ
Smilowitz, JB
Reckwerdt, PJ
Mackie, TR
[J]. MEDICAL PHYSICS, 2001, 28 (04) : 528 - 542

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