In vivo dosimetry in breast tumours: comparison between the calculated and measured dose
DOI:
https://doi.org/10.25758/set.1371Keywords:
Radiotherapy, Breast tumor, In vivo dosimetry, Semiconductor diodesAbstract
Introduction – In vivo dosimetry is useful in measuring the dose administered to patients during treatment, assessing significant differences between the prescribed dose and the dose to the target volume and the organs at risk. Purpose – To compare the measured dose with the calculated dose in patients with breast tumors with and without a physical wedge. Methods – Entrance dose measurements using p-type diodes were performed for tangential fields and relative field-in-field in all 38 patients. Results – Statistically significant differences in open tangential fields (ρ=0.000) were verified. Discussion – Studies report significant systematic deviations between planned and measured doses. Conclusion – With this study, we conclude that there is no influence in the doses due to the presence of the physical wedge.
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References
International Agency for Research on Cancer. Glocoban 2012: estimated cancer incidence, mortality prevalence worldwide in 2012 [Internet]. Lyon: IARC; 2012 [cited 2014 Apr 29]. Available from: http://globocan.iarc.fr/Pages/fact_sheets_population.aspx.
Capelle L, Warkentin H, Mackenzie M, Joseph K, Gabos Z, Pervez N, et al. Skin-sparing helical tomotherapy vs 3D-conformal radiotherapy for adjuvant breast radiotherapy: in vivo skin dosimetry study. Int J Radiat Oncol Biol Phys. 2012;83(5):e583-90.
Malfait B, Sarrazin T, Fournier C, Caudrelier JM, Poupon L, Mazurier J, et al. Dosimétrie in vivo et radiothérapie des cancers du sein [In vitro dosimetry and radiation therapy of breast cancer]. Cancer Radiother. 2002;6(5):296-9. French
Noel A, Aletti P, Bey P, Malissard L. Detection of errors in individual patients in radiotherapy by systematic in vivo dosimetry. Radiother Oncol. 1995;34(2):144-51.
Farhat L, Besbes M, Bridier A, Kaffel F, Daoud J. Contrôle de qualité de la dose délivrée par mesures in vivo lors de la radiothérapie des tumeurs des voies aérodigestives supérieures [Quality control of dose delivered by in vivo measurements for head and neck radiotherapy]. Cancer Radiother. 2010;14(1):69-73. French
Fraass BA. Errors in radiotherapy: motivation for development of new radiotherapy quality assurance paradigms. Int J Radiat Oncol Biol Phys. 2008;71(1 Suppl):S162-5.
Howlett S, Duggan L, Bazley S, Kron T. Selective in vivo dosimetry in radiotherapy using p-type semiconductor diodes: a reliable quality assurance procedure. Med Dosim. 1999;24(1):53-6.
Prabhakar R. Real-time dosimetry in external beam radiation therapy. World J Radiol. 2013;5(10):352-5.
Boissard P. Dosimétrie in vivo en radiothérapie externe avec imageurs portals au silicum amorphe: de la méthode à la validation clinique [Dissertation]. Paris: Service de Physique Medicale, Institut Curie; 2012. Available from: http://thesesups.ups-tlse.fr/1676/
Van Gurp EB. In vivo dosimetry using MOSFET detectors in radiotherapy [Dissertation]. Maastricht: Universitaire Pers Maastricht; 2009. Available from: http://pub.maastrichtuniversity.nl/98fe7973-faa9-4e17-8ee9-88dbd7de7a36
Fiorino C, Corletto D, Mangili P, Broggi S, Bonini A, Cattaneo GM, et al. Quality assurance by systematic in vivo dosimetry: results on a large cohort of patients. Radiother Oncol. 2000;56(1):85-95.
Vasile G, Vasile M, Duliu OG. In vivo dosimetry measurements for breast radiation treatments. Rom Rep Phys. 2012;64(3):728-36.
Huyskens DP, Bogaerts R, Verstraete J, Lööf M, Nyström H, Fiorino C, et al. Practical guidelines for the implementation of in vivo dosimetry with diodes in external radiotherapy with photons beam (entrance dose). Brussels: ESTRO; 2001. ISBN 908045323.
Cozzi L, Fogliata-Cozzi A. Quality assurance in radiation oncology: a study of feasibility and impact on action levels of an in vivo dosimetry program during breast cancer irradiation. Radiother Oncol. 1998;47(1):29-36.
Alecu R, Loomis T, Alecu J, Ochran T. Guidelines on the implementation of diode in vivo dosimetry programs for photon and electron external beam therapy. Med Dosim. 1999;24(1):5-12.
Kadesjö N, Nyholm T, Olofsson J. A practical approach to diode based in vivo dosimetry for intensity modulated radiotherapy. Radiother Oncol. 2011;98(3):378-81.
Essers M, Mijnheer BJ. In vivo dosimetry during external photon beam radiotherapy. Int J Radiat Oncol Biol Phys. 1999;43(2):245-59.
American Association of Physicists in Medicine. Diode in vivo dosimetry for patients receiving external beam radiation therapy. Madison, WI: Medical Physics Publishing; 2005. ISBN 9781888340501
Herbert CE, Ebert MA, Joseph DJ. Feasible measurement errors when undertaking in vivo dosimetry during external beam radiotherapy of the breast. Med Dosim. 2003;28(1):45-8.
Lanson JH, Essers M, Meijer GJ, Minken AW, Uiterwaal GJ, Mijnheer BJ. In vivo dosimetry during conformal radiotherapy: requirements for and findings of a routine procedure. Radiother Oncol. 1999;52(1):51-9.
Van Dam J, Marinello G. Methods for in vivo dosimetry in external radiotherapy. 2nd ed. Brussels: ESTRO; 2006. ISBN 908045329
Alecu R, Feldmeier JJ, Alecu M. Dose perturbations due to in vivo dosimetry with diodes. Radiother Oncol. 1997;42(3):289-91.
Thwaites D. Accuracy required and achievable in radiotherapy dosimetry: have modern technology and techniques changed our views? J Phys Conf Ser. 2013;444(1):012006.
Dupont S, Aubignac L, Dufreneix S, Briand C, Jaffre F, Klotz S, et al. Contrôle qualité de la dose délivrée par dosimétrie in vivo: un critère de tolérance unique peut-il satisfaire toutes les localisations? [Quality control of dose delivered by in vivo dosimetry: can one tolerance be used for all localizations?]. Cancer Radiother. 2012;16(2):115-22. French
Cilla S, Azario L, Greco F, Fidanzio A, Porcelli A, Grusio M, et al. An in-vivo dosimetry procedure for Elekta step and shoot IMRT. Phys Med. 2014;30(4):419-26.
Huang K, Bice WS Jr, Hidalgo-Salvatierra O. Characterization of an in vivo diode dosimetry system for clinical use. J Appl Clin Med Phys. 2003;4(2):132-42.
Scarantino CW, Prestidge BR, Anscher MS, Ferree CR, Kearns WT, Black RD, et al. The observed variance between predicted and measured radiation dose in breast and prostate patients utilizing an in vivo dosimeter. Int J Radiat Oncol Biol Phys. 2008;72(2):597-604.
Yaparpalvi R, Fontenla DP, Yu L, Lai PP, Vikram B. Radiation therapy of breast carcinoma: confirmation of prescription dose using diodes. Int J Radiat Oncol Biol Phys. 1996;35(1):173-83.
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