1. bookVolume 23 (2017): Issue 4 (December 2017)
Journal Details
License
Format
Journal
First Published
30 Dec 2008
Publication timeframe
4 times per year
Languages
English
Copyright
© 2020 Sciendo

Study of impacts of different evaluation criteria on gamma pass rates in VMAT QA using MatriXX and EPID

Published Online: 21 Dec 2017
Page range: 99 - 107
Received: 24 Jul 2017
Accepted: 09 Oct 2017
Journal Details
License
Format
Journal
First Published
30 Dec 2008
Publication timeframe
4 times per year
Languages
English
Copyright
© 2020 Sciendo

Aim: This study evaluates the impacts of using different evaluation criteria on gamma pass rates in two commercially available QA methods employed for the verification of VMAT plans using different hypothetical planning target volumes (PTVs) and anatomical regions.

Keywords

[1] Verbakel WF, Cuijpers J P, Hoffmans D, et al. Volumetric intensity-modulated arc therapy versus conventional IMRT in head-and-neck cancer: a comparative planning and dosimetric study. Int J Radiat Oncol Biol Phys. 2009;74(1):252–259.Search in Google Scholar

[2] Wolff D, Stieler F, Welzel G, et al. Volumetric modulated arc therapy (VMAT) versus serial tomotherapy, step-and-shoot IMRT and 3D-conformal RT for treatment of prostate cancer. Radiother Oncol. 2009;93(2):226–233.10.1016/j.radonc.2009.08.011Open DOISearch in Google Scholar

[3] Otto K. Volumetric modulated arc therapy: IMRT in a single gantry arc. Med Phys. 2008;35(1):310-317.10.1118/1.2818738Open DOISearch in Google Scholar

[4] Bedford JL, Warrington AP. Commissioning of volumetric modulated arc therapy (VMAT). Int J Radiat Oncol Biol Phys. 2009;73:537-545.Search in Google Scholar

[5] Tatsumi D, Hosono MN, Nakada R, et al. Direct impact analysis of multi-leaf collimator leaf position errors on dose distributions in volumetric modulated arc therapy: a pass rate calculation between measured planar doses with and without the position errors. Phys Med Biol. 2011;56(20):237-246.10.1088/0031-9155/56/20/N03Open DOISearch in Google Scholar

[6] Pardo Montero J, Fenwick JD. The effect of different control point sampling sequences on convergence of VMAT inverse planning Phys Med Biol. 2011;56(8):2569-2583.Search in Google Scholar

[7] Iftimia I, Cirino ET, Xiong L, Mower HW. Quality assurance methodology for Varian RapidArc treatment plans. J Appl Clin Med Phys. 2010;11(4):316410.1120/jacmp.v11i4.3164Open DOISearch in Google Scholar

[8] Chandraraj V, Stathakis S, Manickam R, et al. Consistency and reproducibility of the VMAT plan delivery using three independent validation methods. J Appl Clin Med Phys. 2010;12(1):3373.Search in Google Scholar

[9] Hussein M, Adams EJ, Jordan TJ, et al. A critical evaluation of the PTW 2D-ARRAY seven29 and OCTAVIUS II phantom for IMRT and VMAT verification. J Appl Clin Med Phys. 2013;14(6):4460.Search in Google Scholar

[10] Zhu J, Chen L, Jin G. A comparison of VMAT dosimetric verifications between fixed and rotating gantry positions. Phys Med Biol. 2013;58(15):1315-1322.Search in Google Scholar

[11] Wolfsberger LD, Wagar M, Nitsch P, et al. Angular dose dependence of Matrixx TM and its calibration J Appl Clin Med Phys. 2010;11(1): 241-251.10.1120/jacmp.v11i1.3057Open DOISearch in Google Scholar

[12] Herzen J, Todorovic M, Cremers F, et al. Dosimetric evaluation of a 2D pixel ionization chamber for implementation in clinical routine Phys Med Biol. 2007;52(4):1197-1208.Search in Google Scholar

[13] Li JG, Yan G, Liu C. Comparison of two commercial detector arrays for IMRT quality assurance J Appl Clin Med Phys. 2009;10(2):62-74.10.1120/jacmp.v13i6.4017Open DOISearch in Google Scholar

[14] Han Z, Ng SK, Bhagwat MS, et al. Evaluation of MatriXX for IMRT and VMAT dose verifications in peripheral dose regions. Med Phys. 2010;37(7):3704-3714.10.1118/1.3455707Open DOISearch in Google Scholar

[15] Wiezorek T, Banz N, Schwedas M, et al. Dosimetric quality assurance for intensity-modulated radiotherapy feasibility study for a filmless approach. Strahlenther Onkol. 2005;181(7):468-474.Search in Google Scholar

[16] Chandraraj V, Stathakis S, Manickam R, et al. Comparison of four commercial devices for RapidArc and sliding window IMRT QA. J Appl Clin Med Phys. 2011;12(2):338-349.10.1120/jacmp.v12i2.3367Open DOISearch in Google Scholar

[17] Shimohigashi Y, Araki F, Tominaga H, et al. Angular dependence correction of MatriXX and its application to composite dose verification. J Appl Clin Med Phys. 2012;13(5):81-96.Search in Google Scholar

[18] Boggula R, Birkner M, Lohr F, et al. Evaluation of a 2D detector array for patient-specific VMAT QA with different setups. Phys Med Biol. 2011l56(22):7163-7177.Search in Google Scholar

[19] Bakhtiari M, Kumaraswamy L, Bailey DW, et al. Using an EPID for patient-specific VMAT quality assurance Using an EPID for patient-specific VMAT quality assurance. Med Phys. 2011;38(3):1366-73.10.1118/1.3552925Open DOISearch in Google Scholar

[20] Iori M, Cagni E, Paiusco M, et al. Dosimetric verification of IMAT delivery with a conventional EPID system and a commercial portal dose image prediction tool. Med Phys. 2010;37(1):377-390.Search in Google Scholar

[21] Sharma DS, Mhatre V, Heigrujam M, et al. Portal dosimetry for pretreatment verification of IMRT plan : a comparison with 2D ion chamber array. J Appl Clin Med Phys. 2010;11(4):3268.Search in Google Scholar

[22] Low DA, Harms WB, Mutic S, Purdy JA. A technique for the quantitative evaluation of dose distributions. Med Phys. 1998;25(5):656-661.Search in Google Scholar

[23] Bailey DW, Nelms BE, Attwood K, et al. Statistical variability and confidence intervals for planar dose QA pass rates. Med Phys. 2011;38(11):6053-6064.Search in Google Scholar

[24] Low DA, Dempsey JF. Evaluation of the gamma dose distribution comparison method. Med Phys. 2003;30(9):2455-2464.Search in Google Scholar

[25] Das IJ, Ding GX, Ahnesjö A. Small fields: nonequilibrium radiation dosimetry. Med Phys. 2008;35(1):206-215.Search in Google Scholar

[26] Bailey DW, Kumaraswamy L, Bakhtiari M, et al. EPID dosimetry for pretreatment quality assurance with two commercial systems. J Appl Clin Med Phys. 2012;13(4):3736.Search in Google Scholar

[27] Wagner D, Vorwerk H. Two years experience with quality assurance protocol for patient related Rapid Arc treatment plan verification using a two dimensional ionization chamber array. Radiat Oncol. 2011;6(1):21.Search in Google Scholar

[28] Mans A, Remeijer P, Olaciregui-Ruiz I, et al. 3D dosimetric verification of volumetric-modulated arc therapy by portal dosimetry. Radiother Oncol. 2010;94:181-187.Search in Google Scholar

[29] van Elmpt W, Nijsten S, Dekker AL, et al. Treatment verification in the presence of inhomogeneities using EPID-based three dimensional dose reconstruction Med. Phys. 2007;34(7):2816-2826.10.1118/1.2742778Open DOISearch in Google Scholar

[30] Boggula R, Lorenz F, Mueller L, et al. Experimental validation of a commercial 3D dose verification system for intensity-modulated arc therapies. Phys Med Biol. 2010;55(19):5619-5633.Search in Google Scholar

[31] Mancuso GM, Fontenot JD, Gibbons JP, parker BC. Comparison of action levels for patient-specific quality assurance of intensity modulated radiation therapy and volumetric modulated arc therapy treatments. Med Phys. 2012;39(7):4378-4385.10.1118/1.4729738Open DOISearch in Google Scholar

Plan your remote conference with Sciendo