Results 131 to 140 of about 4,664 (185)
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On-line implant reconstruction in HDR brachytherapy
Radiotherapy and Oncology, 2006To evaluate the accuracy of on-line planning in an Integrated Brachytherapy Unit (IBU) using dedicated image distortion correction algorithms, correcting the geometric distortion and magnetic distortion separately, and to determine the effect of the reconstruction accuracy on clinical treatment plans in terms of deviations in treatment time and dose ...
Kolkman - Deurloo, Inger-karine +2 more
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Practical considerations for prostate HDR brachytherapy
Brachytherapy, 2010A process for prostate high-dose-rate (HDR) brachytherapy was developed and implemented successfully in the community hospital setting. The practical aspects of the program are reviewed and may serve as a foundation for clinics interested in offering this clinical service.A generic needle distribution geometry was established to accommodate target ...
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34. Optimization in HDR gynecological brachytherapy
Physica Medica, 2017Introduction The distal vagina HDR brachytherapy is the final treatment of cervical cancer, as a complementary treatment to surgery and/or external radiation therapy. The goal of this study was to evaluate the coverage of the Clinical Target Volume and the maximum dose received by the Organs at Risk, related to the rectal volume and the optimization ...
M. Vande Woestyne +4 more
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Anatomy based inverse planning in HDR prostate brachytherapy
Radiotherapy and Oncology, 2004The purpose of this study is to evaluate anatomy based inverse planning as implemented in PLATO BPS 14.2 for planning of HDR prostate implants. Six patients were analysed. The dose distributions were optimized using geometric optimization followed by graphical optimization (GO), anatomy based inverse planning or standard inverse optimization (SIO ...
Kolkman- Deurloo, IKK +3 more
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WE-F-BRD-01: HDR Brachytherapy II: Integrating Imaging with HDR
Medical Physics, 2014In recent years, with the advent of high/pulsed dose rate afterloading technology, advanced treatment planning systems, CT/MRI compatible applicators, and advanced imaging platforms, image-guided adaptive brachytherapy treatments (IGABT) have started to play an ever increasing role in modern radiation therapy.
O Craciunescu, D Todor, A de Leeuw
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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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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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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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