Results 71 to 80 of about 1,697 (196)

Deep-learning-based joint rigid and deformable contour propagation for magnetic resonance imaging-guided prostate radiotherapy [PDF]

Background: Deep learning-based unsupervised image registration has recently been proposed, promising fast registration. However, it has yet to be adopted in the online adaptive magnetic resonance imaging-guided radiotherapy (MRgRT) workflow. Purpose: In
Hendriksen, Allard A., Kolenbrander, Iris D., Maspero, Matteo, Pluim, Josien P.W., Pollitt, Ryan, van den Berg, Cornelis A.T., van der Voort van Zyp, Jochem R.N., van Eijnatten, Maureen A.J.M.   +7 more
core   +1 more source

Acceptance testing of a 0.35 T MR‐Linac: procedures, QA baseline, and system limitations

Journal of Applied Clinical Medical Physics, Volume 27, Issue 2, February 2026.
Abstract Purpose This study describes and evaluates the acceptance procedure for a ViewRay (VR) MRIdian 0.35T MR‐Linac, emphasizing key challenges, limitations, and recommendations to enhance clinical performance and accuracy. Methods A comprehensive acceptance test was conducted at a single institution, following the manufacturer's protocols and ...
Mateb Al Khalifa, Tianjun Ma, Haya Aljuaid, Siyong Kim, William Y. Song   +4 more
wiley   +1 more source

Delivery of online adaptive magnetic resonance guided radiotherapy based on isodose boundaries

Physics and Imaging in Radiation Oncology, 2021
Magnetic Resonance-guided Radiotherapy (MRgRT) allows direct monitoring of treated volumes. The aim of this study was to investigate the feasibility of a new gating strategy consisting in using an isodose as boundary.
Claudio Votta, Davide Cusumano, Luca Boldrini, Nicola Dinapoli, Lorenzo Placidi, Gabriele Turco, Marco Valerio Antonelli, Veronica Pollutri, Angela Romano, Luca Indovina, Vincenzo Valentini   +10 more
doaj   +1 more source

PSMA PET‐directed radiotherapy for prostate cancer: From precision planning to future innovations

VIEW, Volume 7, Issue 1, February 2026.
Prostate‐specific membrane antigen (PSMA) positron emission tomography (PET) imaging enables highly sensitive detection of prostate cancer recurrence and precise lesion mapping. This review summarizes current evidence and emerging applications of PSMA PET in radiotherapy, including diagnostic staging, target delineation, adaptive planning, and outcome ...
Wenpeng Huang, Jessica C. Hsu, Ruobing Li, Kexin Lan, Xin Qi, Yuchun Wei, Weibo Cai, Hongzhen Li   +7 more
wiley   +1 more source

DEVELOPMENT AND IMPLEMENTATION OF A HOMOGENEOUS AND A HETEROGENEOUS ANTHROPOMORPHIC END TO END QUALITY ASSURANCE AUDIT SYSTEM PHANTOM FOR MAGNETIC RESONANCE GUIDED RADIOTHERAPY MODALITIES RANGING FROM 0.35 T TO 1.50 T [PDF]

, 2018
Introduction: Magnetic resonance (MR) guided radiation therapy (MRgRT) is an emerging field that integrates an MR imager with either a linear accelerator or three radioactive cobalt-60 sources.
Steinmann, Angela
core   +1 more source

Clinical outcomes after online adaptive MR-guided stereotactic body radiotherapy for pancreatic tumors on a 1.5 T MR-linac

Frontiers in Oncology, 2023
IntroductionOnline adaptive magnetic resonance-guided radiotherapy (MRgRT) is a promising treatment modality for pancreatic cancer and is being employed by an increasing number of centers worldwide. However, clinical outcomes have only been reported on a
Hidde Eijkelenkamp, Guus Grimbergen, Lois A. Daamen, Hanne D. Heerkens, Hanne D. Heerkens, Saskia van de Ven, Stella Mook, Gert J. Meijer, Izaak Q. Molenaar, Hjalmar C. van Santvoort, Eric Paulson, Beth Ann Erickson, Helena M. Verkooijen, William Adrian Hall, Martijn P. W. Intven   +14 more
doaj   +1 more source

Patterns of utilization and clinical adoption of 0.35 Tesla MR-guided radiation therapy in the United States - Understanding the transition to adaptive, ultra-hypofractionated treatments [PDF]

, 2022
PURPOSE/OBJECTIVE: Magnetic resonance-guided radiation therapy (MRgRT) utilization is rapidly expanding worldwide, driven by advanced capabilities including continuous intrafraction visualization, automatic triggered beam delivery, and on-table adaptive ...
Bassetti, Michael F, Chuong, Michael D, Clark, Mary Ann, Fuss, Martin, Henke, Lauren E, Kishan, Amar U, Mak, Raymond H, Mehta, Minesh P, Nagar, Himanshu, Parikh, Parag J, Portelance, Lorraine, Refaat, Tamer, Rineer, Justin M, Rosenberg, Stephen A, Seung, Steven, Smith, Adam, Zaki, Bassem I   +16 more
core   +1 more source

Magnetic resonance‐guided split‐course hypo‐fractionated radiotherapy with concurrent chemotherapy and consolidative immunotherapy in locally advanced non–small cell lung cancer: A single arm, phase 2 study

Cancer, Volume 131, Issue 24, 15 December 2025.
Abstract Background To evaluate the efficacy and safety of magnetic resonance (MR)‐guided split‐course hypo‐fractionated radiotherapy (hypo‐RT) with concurrent chemotherapy followed by consolidative immunotherapy (CIT) in locally advanced non–small cell lung cancer (LA‐NSCLC). Methods In this phase 2 trial, patients with unresectable stage IIIA–C NSCLC
PengXin Zhang, DaQuan Wang, ShaoHan Yin, YuMei Dong, ShiHong Wei, FangJie Liu, HaoTing Zhang, Biao Xia, Yu SiTu, MengRu Wang, Yi Hu, QianWen Liu, LiKun Chen, Bo Qiu, Hui Liu   +14 more
wiley   +1 more source

Initial clinical applications treating pediatric and adolescent patients using MR-guided radiotherapy

Frontiers in Oncology, 2022
PurposeTo demonstrate the clinical applications and feasibility of online adaptive magnetic resonance image guided radiotherapy (MRgRT) in the pediatric, adolescent and young adult (AYA) population.MethodsThis is a retrospective case series of patients ...
Margaret M. Kozak, David Crompton, Brandie A. Gross, Lyndsay Harshman, David Dickens, Jeffrey Snyder, Andrew Shepard, Joël St-Aubin, David Dunkerley, Daniel Hyer, John M. Buatti   +10 more
doaj   +1 more source

Operating procedures, risk management and challenges during implementation of adaptive and non-adaptive MR-guided radiotherapy: 1-year single-center experience

Radiation Oncology, 2021
Background Main purpose was to describe procedures and identify challenges in the implementation process of adaptive and non-adaptive MR-guided radiotherapy (MRgRT), especially new risks in workflow due to the new technique.
Helena Isabel Garcia Schüler, Matea Pavic, Michael Mayinger, Nienke Weitkamp, Madalyne Chamberlain, Cäcilia Reiner, Claudia Linsenmeier, Panagiotis Balermpas, Jerome Krayenbühl, Matthias Guckenberger, Michael Baumgartl, Lotte Wilke, Stephanie Tanadini-Lang, Nicolaus Andratschke   +13 more
doaj   +1 more source