LinkedIn

 آمار

تعداد نشریات20
تعداد شماره‌ها1,113
تعداد مقالات10,208
تعداد مشاهده مقاله40,780,159
تعداد دریافت فایل اصل مقاله8,803,943
Felfeliyan, F, Atarod, M, Amouheidari, A, Noshadi, S, Shokrani, P. (1399). Design and Implementation of a Monte Carlo Framework for Assessment of Spoiler Applications in Abutting Electron Fields. سامانه مدیریت نشریات علمی, 10(3), 341-348. doi: 10.31661/jbpe.v0i0.609
F Felfeliyan; M Atarod; A Amouheidari; S Noshadi; P Shokrani. "Design and Implementation of a Monte Carlo Framework for Assessment of Spoiler Applications in Abutting Electron Fields". سامانه مدیریت نشریات علمی, 10, 3, 1399, 341-348. doi: 10.31661/jbpe.v0i0.609
Felfeliyan, F, Atarod, M, Amouheidari, A, Noshadi, S, Shokrani, P. (1399). 'Design and Implementation of a Monte Carlo Framework for Assessment of Spoiler Applications in Abutting Electron Fields', سامانه مدیریت نشریات علمی, 10(3), pp. 341-348. doi: 10.31661/jbpe.v0i0.609
Felfeliyan, F, Atarod, M, Amouheidari, A, Noshadi, S, Shokrani, P. Design and Implementation of a Monte Carlo Framework for Assessment of Spoiler Applications in Abutting Electron Fields. سامانه مدیریت نشریات علمی, 1399; 10(3): 341-348. doi: 10.31661/jbpe.v0i0.609

Design and Implementation of a Monte Carlo Framework for Assessment of Spoiler Applications in Abutting Electron Fields

Journal of Biomedical Physics and Engineering
مقاله 11، دوره 10، شماره 3، مرداد و شهریور 2020، صفحه 341-348    اصل مقاله (709.48 K)
نوع مقاله: Original Research
شناسه دیجیتال (DOI): 10.31661/jbpe.v0i0.609
نویسندگان
F Felfeliyan1؛ M Atarod2؛ A Amouheidari3؛ S Noshadi1؛ P Shokrani* 4
1MSc, Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
2PhD, Department of Medical Physics and Radiology, Shahrekord University of Medical Sciences, Shahrekord, Iran
3MD, Department of Radiation Oncology, Milad Hospital, Isfahan, Iran
4PhD, Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
چکیده
Background: Field matching problems in abutting electron fields can be managed by using spoilers.
Objective: The aim of this study was to design a Monte Carlo framework for the assessment of spoiler application in abutting electron fields.
Material and Methods: In this experimental study, a Siemens Primus treatment head was simulated for a 5 MeV electron beam using BEAMnrc, DOSXYZnrc and EGSnrc user codes. Validation of beam model was done by measurement using a MP3-M water tank and a Semi-flex Chamber-31010 (PTW, Freiburg, Germany). An in-house routine was developed to calculate the combined isodose curves resulting from simulated adjacent fields. The developed framework was analyzed using PMMA and chromium spoilers.
Results: The penumbra width increased from 27.5 mm for open fields to 42 mm for PMMA and 40 mm for chromium. The maximum junction dose reduced from 115% for open fields to 107% for PMMA and 108% for chromium. R90 reduced about 6 mm for PMMA and 3 mm for chromium. Uniformity index reduced from 93% to 77% for both spoilers. Surface dose increased from 79% to 89% for PMMA and 88% for chromium.
Conclusion: Using spoilers, penumbra width at the surface was increased, size and depth of hot spots as well as the therapeutic range were reduced and dose homogeneity at the junction of abutting electron fields was improved. For both spoilers, the uniformity index reduced, and surface percent dose increased. The results of this research can be used to optimize dose distribution in electron beam treatment using abutting fields.
کلیدواژه‌ها
Spoilers؛ Abutting Fields؛ Electron Beam؛ Radiotherapy؛ Chromium؛ Monte Carlo Method
سایر فایل های مرتبط با مقاله
مراجع
  1. Khan FM, Gibbons JP. Khan’s the physics of radiation therapy. Philadelphia: Lippincott Williams & Wilkins; 2014.
  2. McKenzie AL. A simple method for matching electron beams in radiotherapy. Phys Med Biol. 1998;43:3465-78. doi: 10.1088/0031-9155/43/12/006. PubMed PMID: 9869025.
  3. Eldib AA, ElGohary MI, Fan J, Jin L, Li J, Ma C, et al. Dosimetric characteristics of an electron multileaf collimator for modulated electron radiation therapy. J Appl Clin Med Phys. 2010;11:2913. PubMed PMID: 20592689.
  4. Kalend AM, Zwicker RD, Wu A, Sternick ES. A beam-edge modifier for abutting electron fields. Med Phys. 1985;12:793-8. doi: 10.1118/1.595667. PubMed PMID: 4079874.
  5. Hernandez V, Sanchez-Reyes A, Badal A, Vila A, Mur E, Pedro A, et al. Use of an electron spoiler for radiation treatment of surface skin diseases. Clin Transl Oncol. 2010;12:374-80. doi: 10.1007/s12094-010-0519-3. PubMed PMID: 20466622.
  6. Park SY, Ahn BS, Park JM, Ye SJ, Kim IH, Kim JI. Dosimetric comparison of 4 MeV and 6 MeV electron beams for total skin irradiation. Radiat Oncol. 2014;9:197. doi: 10.1186/1748-717X-9-197. PubMed PMID: 25194217. PubMed PMCID: 4261910.
  7. Omer HBES, Sulieman AA. Monte Carlo simulation of Electron Beams; Influential Parameters and Potential Sources of Simulation Faults. Journal of Advanced Biomedical & Pathobiology Research Vol. 2013;3:8-18.
  8. Makrani DS, Hasanzadeh H, Pourfallah TA, Ghasemi A, Jadidi M, Babapour H. Determination of primary electron beam parameters in a Siemens Primus Linac using Monte Carlo simulation. Journal of Paramedical Sciences. 2015;6(1).
  9. Toossi MTB, Ghorbani M, Akbari F, Sabet LS, Mehrpouyan M. Monte Carlo simulation of electron modes of a Siemens Primus linac (8, 12 and 14 MeV). Journal of Radiotherapy in Practice. 2013;12:352-9. doi: 10.1017/S1460396912000593.
  10. Rogers D, Walters B, Kawrakow I. BEAMnrc users manual. NRC Report PIRS. 2009;509:12.
  11. Schreiber EC, Faddegon BA. Sensitivity of large-field electron beams to variations in a Monte Carlo accelerator model. Phys Med Biol. 2005;50:769-78. doi: 10.1088/0031-9155/50/5/003. PubMed PMID: 15798253.
  12. Walters B, Kawrakow I, Rogers DWO. DOSXYZnrc users manual. NRC Report PIRS, Canada, Ottawa: Ionizing Radiation Standards National Research Council; 2005;794.
  13. Wieslander E. Verification of dose calculation algorithms in treatment planning systems for external radiation therapy: a Monte Carlo approach. Sweden: Lund University; 2006.
  14. Jabbari N, Hashemi-Malayeri B. Monte Carlo modeling of electron beams from a NEPTUN 10PC medical linear accelerator. Nukleonika. 2009;54:233-8.
  15. Podgorsak EB. Radiation physics for medical physicists. Germany: Springer Science & Business Media; 2010.
آمار
تعداد مشاهده مقاله: 1,668
تعداد دریافت فایل اصل مقاله: 497


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب