Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Courtney Knaup"'
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology, Vol 7, Iss 1, Pp 71-83 (2019)
Objective(s): The purpose of this research is to study the effect of beta spectrum on absorbed fraction ( ) and to find suitable analytical functions for beta spectrum absorbed fractions in spherical and ellipsoidal volumes with a uniform distributio
Externí odkaz:
https://doaj.org/article/f1ef6ac535fe4f28984380f8c64aaa6d
Publikováno v:
Journal of Contemporary Brachytherapy, Vol 8, Iss 1, Pp 74-81 (2016)
Purpose: Low energy sources are routinely used in prostate brachytherapy. 125 I is one of the most commonly used sources. Low energy 131 Cs source was introduced recently as a brachytherapy source. The aim of this study is to compare dose distributio
Externí odkaz:
https://doaj.org/article/25f64042e4df4f9face5d10d95271243
Autor:
Bagher Farhood, Seyed Rabie Mahdavi, Mohammad Hasan Emranpour, Kamal Mohammadi Asl, Navid Nekoui, Courtney Knaup
Publikováno v:
Iranian Journal of Medical Physics, Vol 11, Iss 4, Pp 316-321 (2014)
Introduction The first medical intervention for many breast cancer patients is breast conserving surgery (BCS) and/or modified radical mastectomy (MRM). Most of these patients undergo radiation therapy, following surgery. The most common side-effect
Externí odkaz:
https://doaj.org/article/9686899bc7554a8390a2cc2e56f57ba1
Evaluation of the effect of prostate volume change on tumor control probability in LDR brachytherapy
Autor:
Courtney Knaup, Panayiotis Mavroidis, Sotirios Stathakis, Mark Smith, Gregory Swanson, Niko Papanikolaou
Publikováno v:
Journal of Contemporary Brachytherapy, Vol 3, Iss 3, Pp 125-130 (2011)
Purpose: This study evaluates low dose-rate brachytherapy (LDR) prostate plans to determine the biological effectof dose degradation due to prostate volume changes. Material and methods: In this study, 39 patients were evaluated. Pre-implant prostate
Externí odkaz:
https://doaj.org/article/77f5b06f755341d685f37fce3fcc5b06
Autor:
Sotirios Stathakis, Dimos Baltas, Carlos Esquivel, Panayiotis Mavroidis, Courtney Knaup, Gregory Swanson, Nikos Papanikolaou
Publikováno v:
Journal of Contemporary Brachytherapy, Vol 3, Iss 2, Pp 74-83 (2011)
Purpose: Accurate prostate low dose-rate brachytherapy treatment plan evaluation is important for future care decisions. Presently, an evaluation is based on dosimetric quantifiers for the tumor and organs at risk. However, these do not account for e
Externí odkaz:
https://doaj.org/article/90d4917e2eee4c53be95de4e672d4fce
Publikováno v:
Reports of Practical Oncology & Radiotherapy. 25:139-145
Purpose The purpose of the present study was to perform an independent calculation of dosimetric parameters associated with a new 192Ir brachytherapy source model, IRAsource. Materials and methods The parameters of air kerma strength (AKS), dose rate
Publikováno v:
Journal of Cancer Research and Therapeutics, Vol 15, Iss 8, Pp 127-134 (2019)
Introduction: Calculations from a treatment planning system (TPS) in heterogeneous regions may present significant inaccuracies due to loss of electronic equilibrium. The purpose of this study is to evaluate and quantify the differences of dose distr
Autor:
Courtney Knaup, Shokouhozaman Soleymanifard, Bagher Farhood, Mohammad Taghi Bahreyni Toossi, Ashraf Farkhari
Publikováno v:
Journal of Cancer Research and Therapeutics, Vol 14, Iss 12, Pp 1110-1116 (2018)
Aim: The aim of this study was to assess the accuracy of electron dose calculations of Prowess Panther treatment planning system (TPS) for abutting photon-electron (PE) technique. In this work, we have assessed the accuracy of electron dose calculati
Autor:
Azam Mozaffari, Nastaran Mohamadian, Courtney Knaup, Mohammad Taghi Bahreyni Toossi, Bagher Farhood, Najmeh Ghatei
Publikováno v:
Journal of Cancer Research and Therapeutics, Vol 14, Iss 6, Pp 1214-1219 (2018)
Aim: The aim of this study was to measure entrance skin dose (ESD) on the breast of patients who had undergone radiotherapy following surgery, in the presence and absence of bolus. Materials and Methods: In this study, the ESD on the breast of 22 fem
Autor:
Bagher, Farhood, Mohammad Taghi, Bahreyni Toossi, Mahdi, Ghorbani, Elahe, Salari, Courtney, Knaup
Publikováno v:
Journal of Cancer Research and Therapeutics, Vol 13, Iss 6, Pp 968-973 (2017)
Aim: Our objective is to quantify dose calculation accuracy in the build-up region using TiGRT and Prowess Panther treatment planning systems (TPSs). Materials and Methods: Thermoluminescent dosimeter-100 chips were used in a phantom for dose measure