Advanced kernel methods vs. Monte Carlo-based dose calculation for high energy photon beams

Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology
Irina FotinaDietmar Georg

Abstract

The aim of this study was to compare the dose calculation accuracy of advanced kernel-based methods and Monte Carlo algorithms in commercially available treatment planning systems. Following dose calculation algorithms and treatment planning (TPS) systems were compared: the collapsed cone (CC) convolution algorithm available in Oncentra Masterplan, the XVMC Monte Carlo algorithm implemented in iPlan and Monaco, and the analytical anisotropic algorithm (AAA) implemented in Eclipse. Measurements were performed with a calibrated ionization chamber and radiochromic EBT type films in a homogenous polystyrene phantom and in heterogeneous lung phantoms. Single beam tests, conformal treatment plans and IMRT plans were validated. Dosimetric evaluations included absolute dose measurements, 1D gamma-evaluation of depth-dose curves and profiles using 2mm and 2% dose difference criteria for single beam tests, and gamma-evaluation of axial planes for composite treatment plans applying 3mm and 3% dose difference criteria. Absolute dosimetry revealed no large differences between MC and advanced kernel dose calculations. 1D gamma-evaluation showed significant discrepancies between depth-dose curves in different phantom geometries. For the CC al...Continue Reading

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Citations

Apr 28, 2011·Medical Physics·Dietmar GeorgBrendan McClean
Jun 30, 2011·Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]·Matthias UhlKlaus Herfarth
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Nov 3, 2012·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Caroline LafondMarie-Claude Biston
Sep 24, 2013·Zeitschrift für medizinische Physik·Ralf DreindlMarkus Stock
Jul 20, 2012·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Irina FotinaDietmar Georg
Dec 19, 2014·Radiation Protection Dosimetry·Kenta TakadaAkira Matsumura
Feb 23, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·David I Thwaites, Dirk Verellen
May 31, 2011·International Journal of Radiation Oncology, Biology, Physics·Gabriela AltorjaiKarin Dieckmann
May 17, 2015·Medical Physics·Bruno De ManZhye Yin
Mar 25, 2015·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Carla SiniRiccardo Calandrino
Sep 29, 2011·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Gabriele KraglDietmar Georg
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Feb 19, 2011·Journal of Applied Clinical Medical Physics·James C L ChowMichael K K Leung
Jul 23, 2020·Computational and Mathematical Methods in Medicine·Mathias S WeylandStephan Scheidegger
Dec 10, 2020·Physics in Medicine and Biology·Tony YounesLaure Vieillevigne
Mar 29, 2021·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Maddison ShawRhonda Brown

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