Results 21 to 30 of about 106,552 (312)

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
doaj   +1 more source

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
doaj   +1 more source

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
doaj   +1 more source

Improving on whole-brain radiotherapy in patients with large brain metastases: a planning study to support the AROMA clinical trial [PDF]

, 2022
PURPOSE: To develop a novel dose-escalated volumetric modulated arc therapy (VMAT) strategy for patients with single or multiple large brain metastases which can deliver a higher dose to individual lesions for better local control (LC), and to compare ...
Rozati, Hamoun, Calvez, Kerlann Le, Wang, James, Chen, Jiarong, Hill, Laurence, Pakzad-Shahabi, Lillie, Williams, Matt, Sinclair, Georges, Paddick, Ian   +8 more
core   +1 more source

Planning of radiotherapy capacity and productivity [PDF]

Radiotherapy and Oncology, 2013
In the late 1990s a period of shortage of radiotherapy capacity caused long waiting times in The Netherlands. Investments in treatment vaults, equipment and training capacity were made. The developments since then are described and the actual situation is compared with the predictions throughout the years.Data are based on annual surveys on production,
Slotman, B.J., Vos, P.H.
openaire   +2 more sources

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
doaj   +1 more source

Use of radiobiological modeling in treatment plan evaluation and optimization of prostate cancer radiotherapy [PDF]

, 2011
There are many tools available that are used to evaluate a radiotherapy treatment plan, such as isodose distribution charts, dose volume histograms (DVH), maximum, minimum and mean doses of the dose distributions as well as DVH point dose constraints ...
Baltas, Dimos, Bengt K., Nikos Papanikolaou, Lind, Bengt K., Mavroidis, Panayiotis, Papanikolaou, Nikos, Bengt K. Lind, Panayiotis Mavroidis, Dimos Baltas   +8 more
core   +1 more source

Comparison of 3DCRT and IMRT out-of-field doses in pediatric patients using Monte Carlo simulations with treatment planning system calculations and measurements

Frontiers in Oncology, 2022
3DCRT and IMRT out-of-field doses in pediatric patients were compared using Monte Carlo simulations with treatment planning system calculations and measurements.PurposeOut-of-field doses are given to healthy tissues, which may allow the development of ...
Ana Cravo Sá, Ana Cravo Sá, Ana Cravo Sá, Andreia Barateiro, Bryan P. Bednarz, Pedro Almeida, Pedro Vaz, Tiago Madaleno   +7 more
doaj   +1 more source

Practical Guidelines on Implementing Hypofractionated Radiotherapy for Prostate Cancer in Africa [PDF]

, 2021
Among a growing body of literature in global oncology, several articles project increased cost savings and radiotherapy access by adopting hypofractionated radiotherapy (HFRT) in low- and middle-income countries (LMICs) like those in Africa.
Ngwa, Wilfred, Sajo, Erno, Swanson, William, Samba, Richard Ndi, Incrocci, Luca; id_orcid, Incrocci, Luca, Lavelle, Michael, Elzawawy, Ahmed   +7 more
core   +1 more source

CT radiomics identifying non‐responders to neoadjuvant chemoradiotherapy among patients with locally advanced rectal cancer

Cancer Medicine, 2023
Background and Purpose Early detection of non‐response to neoadjuvant chemoradiotherapy (nCRT) for locally advanced colorectal cancer (LARC) remains challenging.
Zinan Zhang, Xiaoping Yi, Qian Pei, Yan Fu, Bin Li, Haipeng Liu, Zaide Han, Changyong Chen, Peipei Pang, Huashan Lin, Guanghui Gong, Hongling Yin, Hongyan Zai, Bihong T. Chen   +13 more
doaj   +1 more source