Results 161 to 170 of about 51,158 (208)
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Attenuation of intracavitary applicators in ‐HDR brachytherapy
Medical Physics, 2004Unlike the penetrating monoenergetic 662 keV gamma rays emitted by LDR sources, the spectrum of used in HDR brachytherapy contains low‐energy components. Since these are selectively absorbed by the high‐atomic number materials of which intracavitary applicators are made, the traditional neglect of applicator attenuation can lead to appreciable dose ...
Sung‐Joon Ye +5 more
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118CT based interstitial HDR brachytherapy
Radiotherapy and Oncology, 1998Development, application and evaluation of a CT-guided implantation technique and a fully CT-based treatment planning procedure for brachytherapy.
Christos Kolotas +4 more
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Optimization of HDR Brachytherapy Treatment Plans
2007Purpose: Effective cancer brachytherapy requires a treatment plan that delivers high dose to tumor while minimizing dose to critical normal tissue. Current planning systems generate accurately physical dose distributions but do not take biological effects into account.
James C. H. Chu +5 more
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Monte Carlo dosimetry in HDR brachytherapy
AIP Conference Proceedings, 2000A Monte Carlo simulation of an encapsulated 192Ir source for high dose rate (HDR) prostate brachytherapy is presented. Basic dosimetric quantities related to this source are derived from the simulation data following the AAPM Task Group 43 formalism, including dose rate constant, source kerma strength, anisotropy function and radial dose function. Dose
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Mechanical evaluation of the Bravos afterloader system for HDR brachytherapy
Brachytherapy, 2019The Bravos afterloader system was released by Varian Medical Systems in October of 2018 for high-dose-rate brachytherapy with 192Ir sources, containing new features such as the CamScale (a new device for daily quality assurance and system recalibration), channel length verification, and different settings for rigid and flexible applicators.
Bellezzo, Murillo +5 more
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Application of Dose Gels in HDR Brachytherapy
2015Normoxic gels are frequently used in clinical praxis for dose assessment or 3D dose imaging in radiotherapy due to their relative simple manufacturing process, well expressed radiation induced modification of physical properties and well defined spatial shape of the polymerized gel part in the irradiated volume. Normoxic polyacrylamide (nPAG) gels were
D. Adliene +4 more
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Monte Carlo evaluation of kerma in an HDR brachytherapy bunker
Physics in Medicine and Biology, 2004In recent years, the use of high dose rate (HDR) after-loader machines has greatly increased due to the shift from traditional Cs-137/Ir-192 low dose rate (LDR) to HDR brachytherapy. The method used to calculate the required concrete and, where appropriate, lead shielding in the door is based on analytical methods provided by documents published by the
J, Pérez-Calatayud +7 more
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Results of HDR Prostate Brachytherapy Treatments
2013Most of the publications deal with retrospective monoinstitutional results or with the statistical analysis of multi-institutional data pools. Although results of prospective nonrandomized studies or retrospective data analysis may be influenced by potential selection bias and inconsistent data analysis, careful presentation can help to understand ...
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117 HDR endobronchial brachytherapy
Radiotherapy and Oncology, 1996Marcela de la Torre +2 more
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