Results 1 to 10 of about 649,932 (223)

Validation of echo planar imaging based diffusion-weighted magnetic resonance imaging on a 0.35 T MR-Linac [PDF]

Physics and Imaging in Radiation Oncology
Background and Purpose: The feasibility of acquiring diffusion-weighted imaging (DWI) images on an MR-Linac for quantitative response assessment during radiotherapy was explored. DWI data obtained with a Spin Echo Echo Planar Imaging sequence adapted for
Philipp Wallimann, Marco Piccirelli, Sylwia Nowakowska, Tess Armstrong, Michael Mayinger, Andreas Boss, Andrea Bink, Matthias Guckenberger, Stephanie Tanadini-Lang, Nicolaus Andratschke, Bertrand Pouymayou   +10 more
doaj   +4 more sources

MR-linac: role of artificial intelligence and automation [PDF]

Strahlenther Onkol
The integration of artificial intelligence (AI) into radiotherapy has advanced significantly during the past 5 years, especially in terms of automating key processes like organ at risk delineation and treatment planning.
S. Psoroulas, Alina Paunoiu, S. Corradini, J. Hörner-Rieber, S. Tanadini-Lang   +4 more
semanticscholar   +5 more sources

Demonstration of motion-compensated volumetric modulated arc radiotherapy on an MR-linac [PDF]

Physics and Imaging in Radiation Oncology
Intensity-modulated radiotherapy (IMRT) in combination with magnetic resonance imaging (MRI)-guided gated delivery represents the latest development in the treatment of abdominothoracic tumours on MR-linac.
Pim T.S. Borman, Prescilla Uijtewaal, Jeffrey Snyder, Bryan Allen, Caiden K. Atienza, Peter Woodhead, Daniel E. Hyer, Bas W. Raaymakers, Martin F. Fast   +8 more
doaj   +3 more sources

Feasibility of cardiac-synchronized quantitative T1 and T2 mapping on a hybrid 1.5 Tesla magnetic resonance imaging and linear accelerator system [PDF]

Physics and Imaging in Radiation Oncology, 2022
Background and Purpose: The heart is important in radiotherapy either as target or organ at risk. Quantitative T1 and T2 cardiac magnetic resonance imaging (qMRI) may aid in target definition for cardiac radioablation, and imaging biomarker for ...
Osman Akdag, Stefano Mandija, Astrid L.H.M.W. van Lier, Pim T.S. Borman, Tim Schakel, Eveline Alberts, Oscar van der Heide, Rutger J. Hassink, Joost J.C. Verhoeff, Firdaus A.A. Mohamed Hoesein, Bas W. Raaymakers, Martin F. Fast   +11 more
doaj   +3 more sources

Impact of magnetic resonance-guided versus conventional radiotherapy workflows on organ at risk doses in stereotactic body radiotherapy for lymph node oligometastases [PDF]

Physics and Imaging in Radiation Oncology, 2022
Background and purpose: Magnetic resonance (MR)-linac delivery is expected to improve organ at risk (OAR) sparing. In this study, OAR doses were compared for online adaptive MR-linac treatments and conventional cone beam computed tomography (CBCT)-linac ...
Anita M. Werensteijn-Honingh, Petra S. Kroon, Dennis Winkel, J. Carlijn van Gaal, Jochem Hes, Louk M.W. Snoeren, Jaleesa K. Timmer, Christiaan C.P. Mout, Gijsbert H. Bol, Alexis N. Kotte, Wietse S.C. Eppinga, Martijn Intven, Bas W. Raaymakers, Ina M. Jürgenliemk-Schulz   +13 more
doaj   +3 more sources

The MOMENTUM Study: An International Registry for the Evidence-Based Introduction of MR-Guided Adaptive Therapy [PDF]

Frontiers in Oncology, 2020
Purpose: MR-guided Radiation Therapy (MRgRT) allows for high-precision radiotherapy under real-time MR visualization. This enables margin reduction and subsequent dose escalation which may lead to higher tumor control and less toxicity.
Sophie R. de Mol van Otterloo, John P. Christodouleas, Erwin L. A. Blezer, Hafid Akhiat, Kevin Brown, Ananya Choudhury, Dave Eggert, Beth A. Erickson, Corinne Faivre-Finn, Clifton D. Fuller, Joel Goldwein, Shaista Hafeez, Emma Hall, Kevin J. Harrington, Uulke A. van der Heide, Robert A. Huddart, Martijn P. W. Intven, Anna M. Kirby, Susan Lalondrelle, Claire McCann, Bruce D. Minsky, Stella Mook, Marlies E. Nowee, Uwe Oelfke, Kristina Orrling, Arjun Sahgal, Jeffrey G. Sarmiento, Christopher J. Schultz, Robbert J. H. A. Tersteeg, Rob H. N. Tijssen, Alison C. Tree, Baukelien van Triest, William A. Hall, Helena M. Verkooijen   +33 more
doaj   +3 more sources

Adaptive fractionation at the MR-linac [PDF]

Physics in Medicine & Biology, 2023
Objective. Fractionated radiotherapy typically delivers the same dose in each fraction. Adaptive fractionation (AF) is an approach to exploit inter-fraction motion by increasing the dose on days when the distance of tumor and dose-limiting organs at risk
Dal Bello, Riccardo, Ludwig, Roman, Pérez Haas, Y, Tanadini-Lang, Stephanie, Unkelbach, Jan   +4 more
core   +3 more sources

Facilitating 1.5T MR‐Linac adoption: Workflow strategies and practical tips [PDF]

J Appl Clin Med Phys
Background MR‐guided radiotherapy (MRgRT) offers new opportunities but also introduces workflow complexities requiring dedicated optimization. Implementing magnetic resonance linear accelerator (MR‐Linac) technology comes with challenges such as ...
Madeline Michel, Zelda Paquier, C. Bouchart, A. Gulyban, Nicolas Jullian, D. Van Gestel, Sara Poeta, Nick Reynaert, Philippe Martinive, R. Van den Begin   +9 more
semanticscholar   +2 more sources

Clinical implementation and feasibility of long-course fractionated MR-guided chemoradiotherapy for patients with esophageal cancer: An R-IDEAL stage 1b/2a evaluation of technical innovation [PDF]

Clinical and Translational Radiation Oncology, 2022
Purpose: This R-Ideal stage 1b/2a study describes the workflow and feasibility of long-course fractionated online adaptive MR-guided chemoradiotherapy with reduced CTV-to-PTV margins on the 1.5T MR-Linac for patients with esophageal cancer.
M.R. Boekhoff, R. Bouwmans, P.A.H. Doornaert, M.P.W. Intven, J.J.W. Lagendijk, A.L.H.M.W. van Lier, M.J.A. Rasing, S. van de Ven, G.J. Meijer, S. Mook   +9 more
doaj   +3 more sources

Evaluating participant experiences and tolerability with MR Linac imaging [PDF]

Technical Innovations & Patient Support in Radiation Oncology
Introduction: Magnetic Resonance Image Guided Radiotherapy (MRIgRT) integrates MRI with a linear accelerator to enable adaptive treatment delivery. While technical feasibility is well established, patient experience during MR Linac imaging, especially ...
Jayde Nartey, Helen A. McNair, Katie Biscombe, Sophie E. Alexander, Charlotte Cherry, Cynthia Eccles, Trina Herbert, Shaista Hafeez, Kelly Jones, Francesca Mason, Simeon Nill, Hosna Mohammad, Kian Morrison, Bethany Williams, Robert Huddart   +14 more
doaj   +2 more sources