Physica Medica: European Journal of Medical Physics
Volume 27, Issue 1 , Pages 1-10 , January 2011

In vivo dose verification from back projection of a transit dose measurement on the central axis of photon beams

Received 21 December 2009 ,Revised 31 March 2010 ,Accepted 10 June 2010.

References 

  1. Essers M, Mijnheer BJ. In vivo dosimetry during external photon beam radiotherapy. Int J Radiat Oncol Biol Phys. 1999;43:245–259
  2. Huyskens DP, Bogaerts R, Verstraete J, et al. Practical guidelines for the implementation of in vivo dosimetry with diodes in external radiotherapy with photon beams (Entrance dose). Booklet no. 5 1st ed.. ESTRO; 2001;
  3. Van Dam J, Marinello G. Methods for in vivo dosimetry in external radiotherapy. Booklet no. 1 2nd ed.. ESTRO; 2006;p. 79
  4. Noel A, Aletti P, Bey P, Malissard L. Detection of errors in individual patients in radiotherapy by systematic in vivo dosimetry. Radiother Oncol. 1995;34:144–151
  5. Leunens G, Verstraete J, Van Dam J, et al. Experience in in-vivo dosimetry investigations in Leuven. In: “Radiation dose in radiotherapy from prescription to delivery”. IAEA Report TECDOC-734; 1994. p. 283–9.
  6. Broggi S, Fiorino C, Calandrino R. In vivo estimation of midline dose maps by transit dosimetry in head and neck radiotherapy. Br J Radiol. 2002;75:974–981
  7. Bogaerts R, Van Esch A, Reymen R, Huyskens D. A method to estimate the transit dose on the beam axis for verification of dose delivery with portal images. Radiother Oncol. 2000;54:39–46
  8. McCurdy BM, Luchka K, Pistorius S. Dosimetric investigation and portal dose image prediction using an amorphous silicon Electronic Portal Imaging Device. Med Phys. 2001;28:911–924
  9. Grein EE, Lee R, Luchka K. An investigation of a new amorphous silicon electronic portal imaging device for transit dosimetry. Med Phys. 2002;29:2262–2268
  10. McDermott LN, Louwe RJ, Sonke JJ, et al. Dose-response and ghosting effects of an amorphous silicon electronic portal imaging device. Med Phys. 2004;31:285–295
  11. Van Esch A, Depuydt T, Huyskens DP. The use of an aSi-based EPID for routine absolute dosimetric pre-treatment verification of dynamic IMRT fields. Radiother Oncol. 2004;71:223–234
  12. Nicolini G, Vanetti E, Clivio A, et al. Testing the portal imager GLAaS algorithm for machine quality assurance. Radiat Oncol. 2008;3:14
  13. Essers M, Boellaard R, van Herk M, et al. Transmission dosimetry with a liquid-filled electronic portal imaging device. Int J Radiat Oncol Biol Phys. 1996;34:931–941
  14. Pasma KL, Kroonwijk M, de Boer JC, et al. Accurate portal dose measurement with a fluoroscopic electronic portal imaging device (EPID) for open and wedged beams and dynamic multileaf collimation. Phys Med Biol. 1998;43:2047–2060
  15. Dahlgren CV, Ahnesjo A, Montelius A, Rikner G. Portal dose image verification: formalism and application of the collapsed cone superposition method. Phys Med Biol. 2002;47:4371–4387
  16. Dahlgren CV, Eilertsen K, Jorgensen TD, Ahnesjo A. Portal dose image verification: the collapsed cone superposition method applied with different electronic portal imaging devices. Phys Med Biol. 2006;51:335–349
  17. McCurdy BM, Pistorius S. A two-step algorithm for predicting portal dose images in arbitrary detectors. Med Phys. 2000;27:2109–2116
  18. Pasma KL, Heijmen BJ, Kroonwijk M, Visser AG. Portal dose image (PDI) prediction for dosimetric treatment verification in radiotherapy. I. An algorithm for open beams. Med Phys. 1998;25:830–840
  19. Pasma KL, Vieira SC, Heijmen BJ. Portal dose image prediction for dosimetric treatment verification in radiotherapy. II. An algorithm for wedged beams. Med Phys. 2002;29:925–931
  20. van Elmpt WJ, Nijsten SM, Mijnheer BJ, Minken AW. Experimental verification of a portal dose prediction model. Med Phys. 2005;32:2805–2818
  21. Partridge M, Ebert M, Hesse BM. IMRT verification by three-dimensional dose reconstruction from portal beam measurements. Med Phys. 2002;29:1847–1858
  22. Louwe RJ, Damen EM, van Herk M, et al. Three-dimensional dose reconstruction of breast cancer treatment using portal imaging. Med Phys. 2003;30:2376–2389
  23. Pasma KL, Kroonwijk M, Quint S, et al. Transit dosimetry with an electronic portal imaging device (EPID) for 115 prostate cancer patients. Int J Radiat Oncol Biol Phys. 1999;45:1297–1303
  24. Boellaard R, Essers M, van Herk M, Mijnheer BJ. New method to obtain the midplane dose using portal in vivo dosimetry. Int J Radiat Oncol Biol Phys. 1998;41:465–474
  25. Nijsten SM, Mijnheer BJ, Dekker AL, et al. Routine individualised patient dosimetry using electronic portal imaging devices. Radiother Oncol. 2007;83:65–75
  26. Piermattei A, Fidanzio A, Stimato G, et al. In vivo dosimetry by an aSi-based EPID. Med Phys. 2006;33:4414–4422
  27. Piermattei A, Fidanzio A, Azario L, et al. Application of a practical method for the isocenter point in vivo dosimetry by a transit signal. Phys Med Biol. 2007;52:5101–5117
  28. Kapatoes JM, Olivera GH, Ruchala KJ, et al. A feasible method for clinical delivery verification and dose reconstruction in tomotherapy. Med Phys. 2001;28:528–542
  29. Wendling M, Louwe RJ, McDermott LN, et al. Accurate two-dimensional IMRT verification using a back-projection EPID dosimetry method. Med Phys. 2006;33:259–273
  30. Berger L. Use of an amorphous Silicon Electronic Portal Imaging Device for dose verification in radiation therapy. PhD Thesis. Toulouse France: P Sabatier University; 2006. 218p.
  31. Institut National du Cancer (INCa) . Critères d’agrément pour la pratique de la radiothérapie externe. www.e-cancer.fr2008;p. 2
  32. Dutreix A, Bjarngard BE, Bridier A, et al. Monitor unit calculation for high energy photon beams. Booklet no. 3 1st ed.. ESTRO; 1997;
  33. Mijnheer B, Bridier A, Garibaldi C, et al. Monitor unit calculation for high energy photon beams. 1st ed.. ESTRO; 2001;p. 56
  34. Berger L, François P, Rosenwald J-C. Water equivalent depth with respect to field size dependence for absolute dose measurements with the amorphous silicon Electronic Portal Imaging Device aS500. Radiother Oncol. 2005;76:S78
  35. Piermattei A, Cilla S, Grimaldi L, et al. Integration between in vivo dosimetry and image guided radiotherapy for lung tumors. Med Phys. 2009;36:2206–2214
  36. McDermott LN, Wendling M, Nijkamp J, et al. 3D in vivo dose verification of entire hypo-fractionated IMRT treatments using an EPID and cone-beam CT. Radiother Oncol. 2008;86:35–42
  37. Swindell W, Evans PM. Scattered radiation in portal images: a Monte Carlo simulation and a simple physical model. Med Phys. 1996;23:63–73
  38. Vial P, Greer PB, Oliver L, Baldock C. Initial evaluation of a commercial EPID modified to a novel direct-detection configuration for radiotherapy dosimetry. Med Phys. 2008;35:4362–4374
  39. Kavuma A, Glegg M, Currie G, Elliott A. Assessment of dosimetrical performance in 11 Varian a-Si-500 electronic portal imaging devices. Phys Med Biol. 2008;53:6893–6909

PII: S1120-1797(10)00040-2

doi: 10.1016/j.ejmp.2010.06.002

Physica Medica: European Journal of Medical Physics
Volume 27, Issue 1 , Pages 1-10 , January 2011

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