68-6

34/104

(Last accessed January 22, 2022).of collimating jaws for small multileaf collimated fields. Med Phys, 2005; 32: 759-765. 7) Matsubayashi F, Koizumi Y, Takahashi R, Yoshioka M, Sato T: Impact of jaw position accuracy on dose varia-tion in volumetric modulated arc therapy using jaw tracking. Nihon Hoshasen Gijutsu Gakkai Zasshi. 2017; 73: 365-371. (in Japanese) 8) Fuangrod T, Rowshanfarzad P, Greer PB, Middleton RH: A cine-EPID based method for jaw detection and quality assurance for tracking jaw in IMRT/VMAT treatments. Phys Med, 2015; 31: 16-24. 9) Chui CS, Spirou S, LoSasso T: Testing of dynamic multileaf collimation. Med Phys, 1996; 23: 635-641.10) Ling CC, Zhang P, Archambault Y, Bocanek J, Tang G, Losasso T: Commissioning and quality assurance of RapidArc radiotherapy delivery system. Int J Radiat Oncol Biol Phys, 2008; 72: 575-581.11) Schindelin J, Arganda-Carreras I, Frise E, et al: Fiji: an open-source platform for biological-image analysis. Nat Methods, 2012; 9: 676-682.12) Davies ER: Machine vision: theory, algorithms, practi-calities. 1990.13) Jain AK: Image filtering and restoration. In: Funda-mentals of digital image processing. Englewood Cliffs, NJ: Prentice Hall. 1989. p. 569.14) Vernon D: Machine vision: automated visual inspection and robot vision. 1991.15) Otsu N: A threshold selection method from gray-level 598histograms. IEEE Trans Syst Man Cybern. 1979; 9: 62-66.16) Broeke J, María J, Pérez M, Pascau J: Image processing with ImageJ. 2015.17) Canny J: A computational approach to edge detection. IEEE Trans Pattern Anal Mach Intell, 1986; 8: 679-698.18) Kerns J: Pylinac. https://github.com/jrkerns/pylinac 19) Zaila A, Adili M, Pylinac BS: A toolkit for performing TG-142 QA related tasks on linear accelerator. 2016; 32: 292-293.20) Glenn MC, Peterson CB, Followill DS, Howell RM, Pollard-Larkin JM, Kry SF: Reference dataset of users’ photon beam modeling parameters for the eclipse, pinnacle, and RayStation treatment planning systems. Med Phys, 2020; 47: 282-288.21) Paudel N, Narayanasamy G, Han E-Y, Zhang X, Thapa B, Penagaricano J: Impact of jaw position on sparing organs at risk in 3-dimensional conformal radiation therapy of pancreatic cancer. Int J Cancer Ther Oncol, 2016; 4.22) Klein EE, Hanley J, Bayouth J, et al: Task Group 142 report: Quality assurance of medical accelerators. Med Phys, 2009; 36: 4197-4212.23) Clivio A, Vanetti E, Rose S, et al. Evaluation of the machine performance check application for TrueBeam Linac. Radiat Oncol, 2015; 10: 1-11.