Results 31 to 40 of about 12,318 (173)

Bulk Anatomical Density Based Dose Calculation for Patient-Specific Quality Assurance of MRI-Only Prostate Radiotherapy

Frontiers in Oncology, 2019
Prostate cancer treatment planning can be performed using magnetic resonance imaging (MRI) only with sCT scans. However, sCT scans are computer generated from MRI data and therefore robust, efficient, and accurate patient-specific quality assurance ...
Jae Hyuk Choi, Danny Lee, Laura O'Connor, Laura O'Connor, Stephan Chalup, James S. Welsh, Jason Dowling, Jason Dowling, Jason Dowling, Peter B. Greer, Peter B. Greer   +10 more
doaj   +1 more source

Investigation of TG-43 dosimetric parameters for 192Ir brachytherapy source using GATE Monte Carlo code

Journal of Medical Physics, 2023
Purpose: According to the revised Task Group number 43 recommendations, a brachytherapy source must be validated against a similar or identical source before its clinical application.
Musa Joya, Hassan Ali Nedaie, Ghazale Geraily, Hadi Rezaei, Awaz Bromand, Mahdi Ghorbani, Peyman Sheikhzadeh   +6 more
doaj   +1 more source

A quality assurance phantom for electronic portal imaging devices [PDF]

, 2011
Electronic portal imaging device (EPID) plays an important role in radiation therapy portal imaging, geometric and dosimetric verification. Consistent image quality and stable radiation response is necessary for proper utilization that requires routine ...
Cao, Minsong, Cheng, Chee-Wai, Das, Indra J., Johnstone, Peter A.S., Misic, Vladimir, Scheuring, Klaus, Schüle, Edmund   +6 more
core   +1 more source

Dosimetric verification of dynamic wedged fields

Reports of Practical Oncology & Radiotherapy, 2003
SummaryPurposeVerification of dynamic wedge algorithm generation in the Clinac 2100 CD accelerator, and in the Cad Plan- Treatment Planing System.MaterialIn order to calculate the dose distribution for dynamic wedge modified fields, the Cad Plan planning system uses an algorithm which is a combination of measurement results for open fields and the GSTT
Janiszewska, Marzena, Nowakowski, Grzegorz   +1 more
openaire   +1 more source

The effect and stability of MVCT images on adaptive TomoTherapy. [PDF]

, 2010
Use of helical TomoTherapy-based MVCT imaging for adaptive planning is becoming increasingly popular. Treatment planning and dose calculations based on MVCT require an image value to electron density calibration to remain stable over the course of ...
Paliwal, Bhudatt R, Rong, Yi, Tolakanahalli, Ranjini, Yadav, Poonam   +3 more
core   +1 more source

Less Time Is Less Motion: Analysis of Practical Efficiencies Gained With a Modified Workflow Integrating Planar kV Midimaging With CBCT for Spine Stereotactic Body Radiation Therapy

Advances in Radiation Oncology, 2022
Purpose: Our purpose was to optimize an image guided radiation therapy (IGRT) workflow to achieve practical setup accuracy in spine stereotactic body radiation therapy (SBRT).
David Y. Hu, PhD, Yiwen Xu, PhD, Yu-Hui Chen, PhD, Marjan Khosravi, MS, Yulia Lyatskaya, PhD, Jeremy S. Bredfeldt, PhD, Fred L. Hacker, PhD, Tracy A. Balboni, MD, Alexander Spektor, MD, PhD, Daniel Cagney, MD, Raymond Mak, MD, Mai Anh Huynh, MD, PhD   +11 more
doaj   +1 more source

Assessment of image quality and dose calculation accuracy on kV CBCT, MV CBCT, and MV CT images for urgent palliative radiotherapy treatments. [PDF]

, 2016
A clinical workflow was developed for urgent palliative radiotherapy treatments that integrates patient simulation, planning, quality assurance, and treatment in one 30-minute session.
Barani, Igor, Braunstein, Steve, Cremers, Florian, Fogh, Shannon E, Held, Mareike, Morin, Olivier, Nakamura, Jean, Perez-Andujar, Angelica, Pouliot, Jean, Sneed, Penny K   +9 more
core   +1 more source

BEBIG 60Co HDR brachytherapy source dosimetric parameters validation using GATE Geant4-based simulation code

Heliyon, 2022
Purpose: This study aims to validate the dosimetric characteristics of High Dose Rate (HDR) 60Co source (Co0.A86 model) using GATE Geant4-based Monte Carlo code. According to the recommendation of the American Association of Physicists in Medicine (AAPM)
Musa Joya, Hassan Ali Nedaie, Ghazale Geraily, Mahdi Ghorbani, Peyman Sheikhzadeh, Mahmud Naraqi Arani   +5 more
doaj   +1 more source

Investigation of Radiation Isocenter Accuracy of Linear Accelerator – New Approach of Comprehensive Evaluation of Gantry, Couch, and Collimator Isocenters

Journal of Medical Physics
Objective: For stereotactic machines, recommendations demand stringent localization and precise delivery, as reflected by isocenter verification. Determining and analyzing the radiation isocenter for all clinical combinations of gantry, collimator, and ...
Avinash Kuppa Rao, Manikandan Palanisamy, G. V. Subrahmanyam, S. P. Swathi, Tamilarasan Mani   +4 more
doaj   +1 more source

MAGIC polymer gel for dosimetric verification in boron neutron capture therapy [PDF]

, 2007
"Radiation-sensitive polymer gels are among the most promising three-dimensional dose verification tools developed to date. We tested the normoxic polymer gel dosimeter known by the acronym MAGIC (methacrylic and ascorbic acid in gelatin initiated by ...
Aschan, Auterinen, Auterinen, Chu, Chu, Deene, Deene, Farajollahi, Fong, Fransson, Gambarini, Gambarini, Gambarini, Gambarini, Gore, Gustavsson, Gustavsson, Gustavsson, Heufelder, Iiro Auterinen, International Commission on Radiation Units and Measurements (ICRU), Jirasek, Jouni Uusi-Simola, Kosunen, Low, Maryanski, Petri Kotiluoto, Press, Raaijmakers, Rae, Ramm, Rogus, Sami Heikkinen, Sauli Savolainen, Seppälä, Serén, Silva, Tiina Seppälä, Tom Serén, Uusi-Simola   +39 more
core   +1 more source