Results 51 to 60 of about 15,225 (147)

Adaptive treatment workflow and dosimetric evaluation of intracranial fractionated stereotactic radiosurgery on a low-field magnetic resonance-linear accelerator

Physics and Imaging in Radiation Oncology
Background and Purpose: Online adaptive radiotherapy for fractionated intracranial stereotactic radiosurgery (FSRS) on a magnetic resonance linear accelerator (MR-L) has the potential to allow for real-time adjustments of anatomical changes during ...
Karen Chin Snyder, Salim M. Siddiqui, Parag Parikh, Kundan Thind   +3 more
doaj   +1 more source

Editorial: Advances in online and real-time adaptive radiotherapy

Physics in Medicine & Biology
Online Adaptive therapy plays a crucial role in improving the precision and effectiveness of modern radiotherapy for both photon and particle treatments. By allowing treatment plans to be adjusted based on daily imaging, adaptive therapy enables more conformal dose delivery accounting for the patient anatomy, potentially improving tumor control and ...
F Albertini, A McWilliam, B Winey
openaire   +3 more sources

Transition from Oncologist- to Therapist-Led MRI-Guided Ultra-Hypofractionated Adaptive Prostate Radiation Therapy: Evaluation of Early Clinical Outcomes

Current Oncology
MR-guided adaptive radiotherapy (ART) enables daily plan optimization for prostate cancer but is resource-intensive. This study evaluated dosimetric and clinical outcomes following transition from radiation oncologist (RO)-led to radiation therapist (RTT)
Amanda Moreira, Tara Rosewall, Jennifer Dang, Aran Kim, Anna T. Santiago, Aruz Mesci, Enrique Gutierrez, Andrew Bayley, Andrew McPartlin, Rachel M. Glicksman, Alejandro Berlin, Jeff Winter, Winnie Li, Peter Chung   +13 more
doaj   +1 more source

Dose adaptation to compensate for cumulative intra-fraction motion effects in online adaptive radiotherapy [PDF]

Physics in Medicine & Biology
Abstract Objective. The objective of this work was to investigate the feasibility of using 0 mm PTV margin in online adaptive radiotherapy for the first fractions, in combination with treatment-specific local compensation of accumulated underdosage to the target in the last fraction. Approach.
Erik van der Bijl, Robert Jan Smeenk, Lukas Schröder, Jan-Jakob Sonke, Uulke A van der Heide, Tomas Janssen   +5 more
openaire   +3 more sources

Dosimetric effect of abdominal compression in online adaptive planning for abdominal cancers treated with a 1.5 Tesla magnetic resonance-guided linear accelerator

Physics and Imaging in Radiation Oncology
Compression belts (CBs) are sometimes used to reduce respiratory motion during stereotactic body radiotherapy of abdominal cancers with magnetic resonance (MR)-guided online adaptive planning. This study evaluated the dosimetric effects of overriding the
Moghadaseh Khaleghibizaki, Angela Sobremonte, Luis Perles, Surendra Prajapati, Ergys Subashi, Yao Ding, Kristy Brock, Roya Barati, Eugene Koay, Chad Tang, Jinzhong Yang   +10 more
doaj   +1 more source

Solution for the hot spots in adaptive radiotherapy planning for cervical cancer: a case report and review of literature

Frontiers in Oncology
The Ethos system (version 2.0, Varian Medical Systems, Palo Alto, CA) is an online adaptive radiotherapy (ART) platform that can automatically replan based on the daily anatomical structure and achieve precise dose delivery. However, the highly automated
Peng Jiang, Xiang Wang, Shubao Cui, Chengyu Ren, Zilu Wang, Yongchun Zhang, Xiaoqian Wu   +6 more
doaj   +1 more source

Feasibility of reusing online-generated treatment plans for adaptive radiotherapy in prostate cancer

Physics and Imaging in Radiation Oncology
Background and Purpose: : Online adaptive radiotherapy (oART) is underused as generating a treatment plan at every fraction is slow and resource intensive.
Sarah A. Mason, Bethany Williams, Sophie Alexander, Alex Dunlop, Alison Tree, Emma J. Harris, Helen McNair   +6 more
doaj   +1 more source

Online adaptive radiotherapy: Clinical utility, challenges and perspectives [PDF]

Critical Reviews in Oncology/Hematology
Online adaptive radiotherapy (oART) represents a major evolution in radiation oncology, enabling daily plan adaptation to account for anatomical variations during treatment. This review synthesizes current evidence on its clinical utility, implementation challenges, and future directions.
Morgan Michalet, Jeppe Friborg, Ivan Richter Vogelius, David Azria   +3 more
openaire   +1 more source

Investigation of changes in planning target volume and regression probability of rectal boost using in-silico cone-beam computed tomography-guided online-adaptive radiotherapy

Physics and Imaging in Radiation Oncology
Background and purpose: Radiotherapy boost to the primary tumour may enable organ preservation in locally advanced rectal cancer (LARC). This study evaluated cone-beam computed tomography (CBCT)-guided online-adaptive radiotherapy (ART) to reduce rectal ...
Julien Pierrard, David Dechambre, Geneviève Van Ooteghem   +2 more
doaj   +1 more source

A simplified online adaptive workflow for long-course magnetic resonance-guided radiotherapy in esophageal cancer

Physics and Imaging in Radiation Oncology
Background and Purpose: Online adaptive magnetic resonance-guided radiotherapy (MRgRT) enables high-precision radiotherapy for esophageal cancer patients but is less feasible due to long on-table times in combination with long-course treatment.
Koen M. Kuijer, Roel Bouwmans, Lando S. Bosma, Stella Mook, Gert J. Meijer   +4 more
doaj   +1 more source