Skip to main content
Top
Published in: Radiological Physics and Technology 1/2016

01-01-2016

Evaluation of AutoCAL for electronic portal imaging device-based multi-leaf collimator quality assurance

Author: Tarafder J. Shameem

Published in: Radiological Physics and Technology | Issue 1/2016

Login to get access

Abstract

Modern radiotherapy treatment techniques commonly include multi-leaf collimators (MLCs) to shape the treatment fields and to conform the radiation dose to the target volume. MLCs require accurate and frequent quality assurance (QA) to ensure spatial and temporal accuracy of the leaves in order to allow optimal dose delivery to the patient. In this study, the accuracy and efficacy of AutoCAL, a commercial software for MLC QA, were evaluated. The software was found to be reproducible to within 0.2 mm and to correspond with conventional QA methods (within 1.2 and 0.9 mm of film and water tank measurements, respectively.) Thus, AutoCAL was found to be an accurate and efficient tool for routine MLC QA and calibration.
Literature
1.
go back to reference Millar M, Cramb J, Das R, Ackerly T, Brown G, Webb D. ACPSEM—recommendation for the safe use of external beams and sealed brachytherapy sources in radiation oncology. 1996. Millar M, Cramb J, Das R, Ackerly T, Brown G, Webb D. ACPSEM—recommendation for the safe use of external beams and sealed brachytherapy sources in radiation oncology. 1996.
2.
go back to reference Klein EE, Hanley J, Bayouth J, Yin FF, Simon W, Dresser S, Serago C, Aguirre F, Ma L, Arjormandy B, Liu C. AAPM Task Group 142 report: quality assurance of medical accelerators. Med Phys. 2009;36(9):4197–212.CrossRefPubMed Klein EE, Hanley J, Bayouth J, Yin FF, Simon W, Dresser S, Serago C, Aguirre F, Ma L, Arjormandy B, Liu C. AAPM Task Group 142 report: quality assurance of medical accelerators. Med Phys. 2009;36(9):4197–212.CrossRefPubMed
3.
go back to reference Alber M, Broggi S, Wagter CD, Eichwurzel I, Engstrom P, Fiorino C, Georg D, Hartmann G, Knoos T, Leal A, Marijnissen H, Mijnheer B, Paiusco M, Sanchez-Doblado F, Schmidt R, Tomsej M, Welleweerd H. ESTRO booklet 9: guidelines for the verification of IMRT. 2008. Alber M, Broggi S, Wagter CD, Eichwurzel I, Engstrom P, Fiorino C, Georg D, Hartmann G, Knoos T, Leal A, Marijnissen H, Mijnheer B, Paiusco M, Sanchez-Doblado F, Schmidt R, Tomsej M, Welleweerd H. ESTRO booklet 9: guidelines for the verification of IMRT. 2008.
4.
go back to reference Hounsell AR, Jordan TJ. Quality control aspects of the Philips multileaf collimator. Radiother Oncol. 1997;45:225–33.CrossRefPubMed Hounsell AR, Jordan TJ. Quality control aspects of the Philips multileaf collimator. Radiother Oncol. 1997;45:225–33.CrossRefPubMed
5.
go back to reference Girardi A, Anglesio S, Amadore G, Trevisiol E, Redda MR. Implementation of a program for quality assurance on leaf positioning accuracy using Gafchromic® RTQA2 films. J Med Phys. 2014;39:116–20.PubMedCentralCrossRefPubMed Girardi A, Anglesio S, Amadore G, Trevisiol E, Redda MR. Implementation of a program for quality assurance on leaf positioning accuracy using Gafchromic® RTQA2 films. J Med Phys. 2014;39:116–20.PubMedCentralCrossRefPubMed
6.
go back to reference Bayouth JE, Wendt D, Morrill SM. MLC Quality assurance technique for IMRT applications. Med Phys. 2003;30:743–50.CrossRefPubMed Bayouth JE, Wendt D, Morrill SM. MLC Quality assurance technique for IMRT applications. Med Phys. 2003;30:743–50.CrossRefPubMed
7.
8.
go back to reference Budgell GJ, Zhang Q, Trouncer RJ, Mackay RI. Improving IMRT quality control efficiency using an amorphous silicon portal imager. Med Phys. 2005;32(11):3267–78.CrossRefPubMed Budgell GJ, Zhang Q, Trouncer RJ, Mackay RI. Improving IMRT quality control efficiency using an amorphous silicon portal imager. Med Phys. 2005;32(11):3267–78.CrossRefPubMed
9.
go back to reference LaSasso T, Chui CS, Ling CC. Physical and dosimetric aspects of a multileaf collimation system used in the dynamic mode for implementing intensity modulated radiotherapy. Med Phys. 1998;25:1919–27.CrossRef LaSasso T, Chui CS, Ling CC. Physical and dosimetric aspects of a multileaf collimation system used in the dynamic mode for implementing intensity modulated radiotherapy. Med Phys. 1998;25:1919–27.CrossRef
10.
go back to reference Chang J, Obcema CH, Sillanpaa J, Mechalakos J, Burman C. Use of EPID for leaf position accuracy QA of dynamic multi-leaf collimator (DMLC) treatment. Med Phys. 2004;31(7):2091–6.CrossRefPubMed Chang J, Obcema CH, Sillanpaa J, Mechalakos J, Burman C. Use of EPID for leaf position accuracy QA of dynamic multi-leaf collimator (DMLC) treatment. Med Phys. 2004;31(7):2091–6.CrossRefPubMed
11.
go back to reference Niroomad-Rad A, Blackwell CR, Coursey BM, Gall KP, Galvin JM, McLaughlin WL, Meigooni AS, Nath R, Rodgers JE, Soares CG. AAPM Task Group No. 55; AAPM Report No. 63: Radiochromic Film Dosimetry. Med Phys. 1998;25(11):2093–115.CrossRef Niroomad-Rad A, Blackwell CR, Coursey BM, Gall KP, Galvin JM, McLaughlin WL, Meigooni AS, Nath R, Rodgers JE, Soares CG. AAPM Task Group No. 55; AAPM Report No. 63: Radiochromic Film Dosimetry. Med Phys. 1998;25(11):2093–115.CrossRef
12.
go back to reference Hunter MM, Li H, Low DA. MLC quality assurance using EPID: a fitting technique with subpixel precision. Med Phys 2008;35(6):2347–55. Hunter MM, Li H, Low DA. MLC quality assurance using EPID: a fitting technique with subpixel precision. Med Phys 2008;35(6):2347–55.
13.
go back to reference Sumida I, Yamaguchi H, Kizaki H, Koizumi M, Ogata T, Takahashi Y, Yoshioka Y. Quality assurance of MLC leaf position accuracy and relative dose effect at the MLC abutment region using and electronic portal imaging device. Journal of Radiation Research. 2012;53:789–806.CrossRef Sumida I, Yamaguchi H, Kizaki H, Koizumi M, Ogata T, Takahashi Y, Yoshioka Y. Quality assurance of MLC leaf position accuracy and relative dose effect at the MLC abutment region using and electronic portal imaging device. Journal of Radiation Research. 2012;53:789–806.CrossRef
14.
go back to reference Baker SJK, Budgell GJ, Mackay RI. Use of an amorphous silicon electronic portal imaging device for multileaf collimator quality control and calibration. Phys Med Biol. 2005;50:1377–92.CrossRefPubMed Baker SJK, Budgell GJ, Mackay RI. Use of an amorphous silicon electronic portal imaging device for multileaf collimator quality control and calibration. Phys Med Biol. 2005;50:1377–92.CrossRefPubMed
15.
16.
Metadata
Title
Evaluation of AutoCAL for electronic portal imaging device-based multi-leaf collimator quality assurance
Author
Tarafder J. Shameem
Publication date
01-01-2016
Publisher
Springer Japan
Published in
Radiological Physics and Technology / Issue 1/2016
Print ISSN: 1865-0333
Electronic ISSN: 1865-0341
DOI
https://doi.org/10.1007/s12194-015-0338-x

Other articles of this Issue 1/2016

Radiological Physics and Technology 1/2016 Go to the issue