Results 71 to 80 of about 1,655,128 (141)

Gaussian Processes for real-time 3D motion and uncertainty estimation during MR-guided radiotherapy [PDF]

, 2023
Respiratory motion during radiotherapy causes uncertainty in the tumor's location, which is typically addressed by an increased radiation area and a decreased dose. As a result, the treatments’ efficacy is reduced.
Huttinga, Niek R.F., van den Berg, Cornelis A.T., Bruijnen, Tom, Sbrizzi, Alessandro   +3 more
core  

Automatic adaptive radiotherapy triggering based on CBCT using deep learning for esophageal cancer underwent volumetric modulated arc therapy

Journal of Applied Clinical Medical Physics, Volume 27, Issue 6, June 2026.
Abstract Background Esophageal cancer (EC) is a highly fatal malignancy for which radiotherapy plays a critical role in treatment. However, anatomical changes during radiotherapy can lead to increased doses to surrounding organs at risk (OARs). Adaptive radiotherapy (ART) is a strategy that incorporates patient‐specific anatomic changes into treatment ...
Juebin Jin, Jiayi Xu, Yapeng Liu, Kai Shao, Long Zhang, Yangyang Zhang, Ce Han, Huawei Yan, Zhiwei Wang, Li Lin, Congying Xie, Xiance Jin, Yongqiang Zhou   +12 more
wiley   +1 more source

Performance evaluation of the binary MLC system on a novel biology‐guided radiotherapy machine using beamlet sequence log data from daily clinical treatments

Journal of Applied Clinical Medical Physics, Volume 27, Issue 6, June 2026.
Abstract Purpose To evaluate the clinical performance of a binary multi‐leaf collimator (MLC) that makes high‐frequency transitions on a novel ring‐gantry medical linac. Methods Beamlet sequence data from treatment plans and daily treatments were retrieved for ten patients treated with image‐guided radiotherapy (IGRT) on the novel machine, with five ...
Chunhui Han, Dave Meer, Blake Gaderlund, An Liu   +3 more
wiley   +1 more source

Evaluating the role of plan complexity metrics in online adaptive radiotherapy for pancreatic cancer patients

Medical Physics, Volume 53, Issue 6, June 2026.
Abstract Purpose To systematically investigate the behavior of plan complexity metrics (PCMs) in an MR‐Linac online adaptive radiotherapy (oART) workflow for pancreatic cancer, and to evaluate their potential as surrogate indicators of delivery accuracy. Methods Thirty‐seven patients with locally advanced pancreatic cancer were retrospectively analyzed,
Samuele Cavinato, Matteo Galetto, Alessandro Scaggion, Andrea Bettinelli, Matteo Nardini, Giuditta Chiloiro, Angela Romano, Marta Paiusco, Luca Boldrini, Lorenzo Placidi   +9 more
wiley   +1 more source

Treatment plan quality during online adaptive re-planning

Radiation Oncology, 2020
Background Online adaptive radiotherapy is intended to prevent plan degradation caused by inter-fractional tumor volume and shape changes, but time limitations make online re-planning challenging.
Janita E. van Timmeren, Madalyne Chamberlain, Jérôme Krayenbuehl, Lotte Wilke, Stefanie Ehrbar, Marta Bogowicz, Callum Hartley, Mariangela Zamburlini, Nicolaus Andratschke, Helena Garcia Schüler, Matea Pavic, Panagiotis Balermpas, Chaehee Ryu, Matthias Guckenberger, Stephanie Tanadini-Lang   +14 more
doaj   +1 more source

Real‐time monitoring of seroma changes during breast cancer radiotherapy using Cherenkov imaging: A technical note

Journal of Applied Clinical Medical Physics, Volume 27, Issue 5, May 2026.
Abstract Background Seroma formation after breast‐conserving surgery is a common postoperative occurrence that can significantly affect the accuracy of radiation therapy. Variations in seroma size and shape during treatment introduce uncertainties in dose delivery, potentially compromising target coverage and increasing exposure to healthy tissue ...
Michael Tallhamer, Adi Robinson
wiley   +1 more source

Characterization of mechanical and radiation isocenter on an MR-guided radiotherapy (MRgRT) Linac. [PDF]

J Appl Clin Med Phys, 2023
Bassiri N, Bayouth JE, Mittauer KE.
europepmc   +1 more source

Does a peer review group consensus process for MR-Linac patients affect clinical care? Evaluation of impact and feasibility

Clinical and Translational Radiation Oncology
Background and purpose: Peer review is an important component of quality assurance in radiotherapy. To our knowledge, there are no studies reporting on the feasibility and outcomes of the peer review process for magnetic resonance (MR) guided ...
Yew Sin, Vikneswary Batumalai, Jeremy de Leon, Eugene Leong, Kasri Rahim, Farshad Kasraei, Charles Tran, Tommy Liang, Katrina Biggerstaff, Michael G. Jameson, Nicole Hug, Kathryn Hird, Hendrick Tan   +12 more
doaj   +1 more source

DataSheet_1_Local control and patient reported outcomes after online MR guided stereotactic body radiotherapy of liver metastases.docx

, 2023
IntroductionStereotactic body radiotherapy (SBRT) is used to treat liver metastases with the intention of ablation. High local control rates were shown.
Cihan Gani (11933135), Jessica Boldt (14430027), Simon Boeke (14430033), Thomas Seufferlein (232037), Laura Uder (14430018), Daniela Thorwarth (4396738), Sabrina Baumeister (14430030), Marcel Nachbar (14430021), Sarah Butzer (14430024), Konstantin Nikolaou (394756), Daniel Zips (809060), Alfred Königsrainer (3214449), Sergios Gatidis (3181623), Michael Bitzer (214413), Rüdiger Hoffmann (8901482)   +14 more
core   +1 more source

Automatic AI-based contouring of prostate MRI for online adaptive radiotherapy

Zeitschrift für Medizinische Physik
Background and purpose: MR-guided radiotherapy (MRgRT) online plan adaptation accounts for tumor volume changes, interfraction motion and thus allows daily sparing of relevant organs at risk.
Marcel Nachbar, Monica lo Russo, Cihan Gani, Simon Boeke, Daniel Wegener, Frank Paulsen, Daniel Zips, Thais Roque, Nikos Paragios, Daniela Thorwarth   +9 more
doaj   +1 more source