Results 11 to 20 of about 88,003 (245)

PLANNING NATIONAL RADIOTHERAPY SERVICES [PDF]

Frontiers in Oncology, 2014
Countries, states and island nations often need forward planning of their radiotherapy services driven by different motives. Countries without radiotherapy services sponsor patients to receive radiotherapy abroad.
Eduardo eRosenblatt
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Robust radiotherapy planning [PDF]

Physics in Medicine & Biology, 2018
Motion and uncertainty in radiotherapy is traditionally handled via margins. The clinical target volume (CTV) is expanded to a larger planning target volume (PTV), which is irradiated to the prescribed dose. However, the PTV concept has several limitations, especially in proton therapy. Therefore, robust and probabilistic optimization methods have been
Jan Unkelbach, Markus Alber, Mark Bangert, Rasmus Bokrantz, Timothy C Y Chan, Joseph O Deasy, Albin Fredriksson, Bram L Gorissen, Marcel van Herk, Wei Liu, Houra Mahmoudzadeh, Omid Nohadani, Jeffrey V Siebers, Marnix Witte, Huijun Xu   +14 more
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Repeatability of MRI for radiotherapy planning for pelvic, brain, and head and neck malignancies

Frontiers in Physics, 2022
Objectives: The objective of this study was to assess the repeatability of MRI for the purpose of radiotherapy treatment planning by considering the difference in registering MRI to MRI compared to registering CT and MRI.Methods: Fifty patients ...
Monique Y. Heinke, Lois Holloway, Lois Holloway, Lois Holloway, Lois Holloway, Lois Holloway, Robba Rai, Shalini K. Vinod, Shalini K. Vinod, Shalini K. Vinod   +9 more
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In silico assessment of the dosimetric quality of a novel, automated radiation treatment planning strategy for linac-based radiosurgery of multiple brain metastases and a comparison with robotic methods

Radiation Oncology, 2018
Background To appraise the dosimetric features and the quality of the treatment plan for radiosurgery of multiple brain metastases optimized with a novel automated engine and to compare with plans optimized for robotic-based delivery. Methods A set of 15
Krzysztof Slosarek, Barbara Bekman, Jacek Wendykier, Aleksandra Grządziel, Antonella Fogliata, Luca Cozzi   +5 more
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Novel application of vinylpolysiloxane hearing aid impression mold as patient‐specific bolus for head and neck cancer radiotherapy

Clinical Case Reports, 2020
Hearing aid impression material composed of vinylpolysiloxane is an ideal bolus material which may be used to aid in delivery of adjuvant radiation to complex surgical defects of the head and neck. It is affordable, easily accessed, and efficient.
Anne Elizabeth Gunter, John Burgoyne, Min Park, Namou Kim, Daliang Cao, Vivek Mehta   +5 more
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Rectal dosimetry in intracavitary applications of cervix carcinoma: Comparison of two methods [PDF]

Archive of Oncology, 2002
BACKGROUND: Brachytherapy of cervix carcinoma often results in high doses to surrounding structures, such as rectum and bladder. Therefore, these organs should be closely monitored.
Baucal Milutin, Babić Jovan, Kuzmanović Zoran   +2 more
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Comparison of Volumetric Quantitative PET Parameters Before and After a CT-Based Elastic Deformation on Dual-Time 18FDG-PET/CT Images: A Feasibility Study in a Perspective of Radiotherapy Planning in Head and Neck Cancer

Frontiers in Medicine, 2022
BackgroundThe use of 18FDG-PET/CT for delineating a gross tumor volume (GTV, also called MTV metabolic tumor volume) in radiotherapy (RT) planning of head neck squamous cell carcinomas (HNSCC) is not included in current recommendations, although its ...
Meriem Maajem, Jean-Christophe Leclère, David Bourhis, David Bourhis, Valentin Tissot, Nicolas Icard, Laëtitia Arnaud, Romain Le Pennec, Romain Le Pennec, Gurvan Dissaux, Dorothy M. Gujral, Dorothy M. Gujral, Pierre-Yves Salaün, Pierre-Yves Salaün, Ulrike Schick, Ronan Abgral, Ronan Abgral   +16 more
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A real-time contouring feedback tool for consensus-based contour training

Frontiers in Oncology, 2023
PurposeVariability in contouring structures of interest for radiotherapy continues to be challenging. Although training can reduce such variability, having radiation oncologists provide feedback can be impractical. We developed a contour training tool to
Christopher L. Nelson, Callistus Nguyen, Raymond Fang, Laurence E. Court, Carlos E. Cardenas, Dong Joo Rhee, Tucker J. Netherton, Raymond P. Mumme, Skylar Gay, Casey Gay, Barbara Marquez, Mohammad D. El Basha, Yao Zhao, Mary Gronberg, Soleil Hernandez, Kelly A. Nealon, Mary K. Martel, Jinzhong Yang   +17 more
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Assessment of Treatment Plan Quality between Flattening Filter and Flattening Filter Free Photon Beam for Carcinoma of the Esophagus with IMRT Technique [PDF]

Journal of Biomedical Physics and Engineering, 2023
Background: As compared to the flattened photon beam, removing the flattening filter (FF) from the head of a gantry decreases the average energy of the photon beam and increases the dose rate, leading to an impact on the quality of treatment plans ...
Dinesh Kumar Saroj, Suresh Yadav, Neetu Paliwal, Subhas Haldar, Amol Jagtap, Arvind Kumar   +5 more
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The Impact of Dose Calculation Algorithm for SBRT Lung Cancer Radiotherapy Treatment [PDF]

Iranian Journal of Medical Physics, 2022
Introduction: The study aimed to provide the dose accuracy effects between the Anisotropic Analytical Algorithm (AAA) and the deterministic solver Acuros XB (AXB) that are available on Eclipse TPS (Varian Medical Systems, Palo Alto, CA) treatment ...
Ahmed Mostafa, Abdel Azim Hussein, Mohammed Galal, Khaled El Shahat   +3 more
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