Results 81 to 90 of about 801,823 (212)

Experimental characterisation of the magnetic field correction factor, k B →, for Roos chambers in a parallel MRI-linac

, 2022
Objective. Reference dosimetry on an MRI-linac requires a chamber specific magnetic field correction factor, kB -. This work aims to measure the correction factor for a parallel plate chamber on a parallel MRI-linac. Approach.
Paul Keall (10741502), Urszula Jelen (3574928), Lois Holloway (4513537), Gary Liney (13957344), Jarrad Begg (13957341)   +4 more
core   +1 more source

MRI B 0 homogeneity and geometric distortion with continuous linac gantry rotation on an Elekta Unity MR-linac [PDF]

, 2019
This work aimed to quantify any principal magnetic field (B 0) inhomogeneity and changes in MR image geometric distortion with continuous linac gantry rotation on an Elekta Unity MR-linac. This situation occurs for around a second between treatment beams
Tijssen, Rob H N, Glitzner, Markus, Raaymakers, Bas W, Jackson, Steven James   +3 more
core   +1 more source

Comparison of gantry-less magnetic resonance guided proton therapy with photon therapy for hepatocellular carcinoma patients

Physics and Imaging in Radiation Oncology
Background and purpose: With magnetic resonance imaging (MRI), soft-tissue tumors such as hepatocellular carcinoma (HCC) are visualised. MR guided proton therapy (MRgPT) may combine the advantages of proton therapy with soft-tissue image-guidance ...
Franciska Lebbink, Emilie Alvarez Michael, Anna Kornek, Annika Lattermann, Chiara Valentini, Petra Trnkova, Esther G.C. Troost   +6 more
doaj   +1 more source

Log file‐based patient‐specific quality assurance for MR‐guided radiation therapy with comprehensive motion management

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Patient‐Specific Quality Assurance (PSQA) for Elekta Unity MR‐Linac treatments delivered under Comprehensive Motion Management (CMM) is challenging because beam gating, unexpected interruptions, and split sub‐segments introduce delivery complexities that are not fully addressed by conventional quality assurance workflows.
Kai Yuan, Matthew Man‐hin Cheung, Louis Lee   +2 more
wiley   +1 more source

Evaluation of inter‐fractional anatomical variations due to compression belt placement reproducibility using MR‐guided radiotherapy treatment fraction images

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Abdominal compression (AC) using a belt‐based system is widely employed in radiation therapy to limit respiration‐induced target motion for abdominal and hepatic malignancies. While AC has demonstrated efficacy in reducing intrafraction motion amplitude, the interfractional anatomical consequences of daily compression belt (CB ...
Olivia Shay, David Solis, Morgan Aire, Christopher Schneider, Krystal Kirby   +4 more
wiley   +1 more source

Routine physics work efficacy and efficiency improvement through a shared‐duty physicist‐of‐the‐day model in a multi‐hospital radiation oncology network

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Large multi‐hospital radiation oncology networks often rely on site‐exclusive physicist coverage models that can lead to imbalanced workload distribution, inconsistent task execution, communication fragmentation, and vulnerability to delayed or missed quality checks.
Guang‐Pei Chen, Douglas E. Prah, Eric S. Paulson   +2 more
wiley   +1 more source

Status of PLS 2-GeV Electron Linac Performance

, 1998
1
고인수
core   +1 more source

Automated planning architectures for online adaptive radiotherapy: A narrative review of the Ethos and Unity/Monaco platforms

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Online adaptive radiotherapy (OART) modifies treatment plans using anatomy‐of‐the‐day imaging, but successful clinical implementation depends on automated planning strategies that can generate high‐quality plans within the constraints of an online workflow. This narrative review compares the automated planning architectures of the Varian Ethos
Songye Cui, Maria F. Chan, Dandan Zheng
wiley   +1 more source

Non‐Metastatic Squamous Cell Carcinoma of the Oropharynx: Primary Surgery or (Chemo)radiotherapy?

Head &Neck, Volume 48, Issue 9, Page 2541-2556, September 2026.
ABSTRACT Background In patients with locally advanced, non‐metastatic oropharyngeal squamous cell carcinoma (OPSCC), surgery‐based and nonsurgical treatment approaches have not been adequately compared in randomized Phase III clinical trials. Current clinical guidelines recommend various surgical and nonsurgical strategies across disease stages for ...
Primož Strojan, Avraham Eisbruch, June Corry, Sandra Nuyts, Pim de Graaf, Luiz P. Kowalski, Jonathan J. Beitler, Sweet Ping Ng, William M. Mendenhall, M. P. Sreeram, Karthik N. Rao, Anna Luíza Damaceno Araújo, Alfio Ferlito   +12 more
wiley   +1 more source

Bibliometric Analysis of the Literature Regarding MRI-Linac: A Paradigm Shift in Radiation Oncology

Data
Background: By integrating an MRI scanner and a linear accelerator, MR-linac systems provide superior soft tissue imaging and allow to perform adaptive radiotherapy adjusted on daily anatomical changes.
Andrea Emanuele Guerini, Paolo Rondi, Federico Mastroleo, Stefania Volpe, Stefano Riga, Stefania Nici, Marco Luzzara, Giulio Ferrazzi, Marco Krengli, Davide Farina, Luigi Spiazzi, Barbara Alicja Jereczek-Fossa, Marco Ravanelli, Michela Buglione di Monale e Bastia   +13 more
doaj   +1 more source