Results 91 to 100 of about 6,070 (214)

Impact of Monaco sequencing parameters on monitor units, plan quality, and optimization time for Elekta Unity liver SBRT plans

Journal of Applied Clinical Medical Physics, Volume 27, Issue 3, March 2026.
Abstract Background Magnetic resonance‐guided radiation therapy (MRgRT) using the Elekta Unity MR‐linac offers significant advantages for liver stereotactic body radiation therapy (SBRT). However, the Unity is limited by a low dose rate and the lack of volumetric‐modulated arc therapy (VMAT), resulting in prolonged treatment times.
Bryan C. Bates, Guanghua Yan, Amanda Schwarz   +2 more
wiley   +1 more source

Dosimetric feasibility of utilizing the ViewRay magnetic resonance guided linac system for image-guided spine stereotactic body radiation therapy [PDF]

, 2019
INTRODUCTION: Spine stereotactic body radiation therapy (SBRT) achieves favorable outcomes compared to conventional radiotherapy doses/fractionation. The spinal cord is the principal dose-limiting organ-at-risk (OAR), and safe treatment requires precise ...
Aydogan, Bulent, Cammin, Jochen, Green, Olga, Malin, Martha, Mutic, Sasa, Pitroda, Sean, Redler, Gage, Stevens, Tynan   +7 more
core   +1 more source

Symptomatic spinal metastasis: A systematic literature review of the preoperative prognostic factors for survival, neurological, functional and quality of life in surgically treated patients and methodological recommendations for prognostic studies [PDF]

, 2017
PURPOSE: While several clinical prediction rules (CPRs) of survival exist for patients with symptomatic spinal metastasis (SSM), these have variable prognostic ability and there is no recognized CPR for health related quality of life (HRQoL).
Choi, D, Fehlings, MG, Martin, AR, Nater, A, Sahgal, A   +4 more
core   +1 more source

Case report: Clinical workflow considerations for treating soft-tissue sarcoma on a 1.5-T MR-Linac

Technical Innovations & Patient Support in Radiation Oncology
We present specific issues that arose when using a 1.5-Tesla MR-Linac to treat a series of 4 soft-tissue sarcoma (STS) patients. These issues arose from the combination of typical STS attributes (long, off-axis target) and MR-Linac design-specific ...
Gye Won Choi, Gary A. Eastwick, Leonard H. Kim   +2 more
doaj   +1 more source

Feasibility of celiac axis delineation and treatment on combined magnetic resonance imaging and linear accelerator systems

Physics and Imaging in Radiation Oncology
Trials have been performed on irradiating celiac plexus for pancreatic cancer pain management. Images from a combined magnetic resonance imaging and linear accelerator system (MR-linac) for ten patients were assessed for delineation of celiac ganglia ...
Sara N. Lim, Yirong Liu, Anugayathri Jawahar, Bharat B. Mittal, Tarita O. Thomas   +4 more
doaj   +1 more source

Treatment planning for MR-guided SBRT of pancreatic tumors on a 1.5 T MR-Linac: A global consensus protocol

Clinical and Translational Radiation Oncology
Background and purpose: Treatment planning for MR-guided stereotactic body radiotherapy (SBRT) for pancreatic tumors can be challenging, leading to a wide variation of protocols and practices.
Guus Grimbergen, Hidde Eijkelenkamp, Louk M.W. Snoeren, Rana Bahij, Uffe Bernchou, Erik van der Bijl, Hanne D. Heerkens, Shawn Binda, Sylvia S.W. Ng, Christelle Bouchart, Zelda Paquier, Kerryn Brown, Richard Khor, Robert Chuter, Linnéa Freear, Alex Dunlop, Robert Adam Mitchell, Beth A. Erickson, William A. Hall, Paola Godoy Scripes, Neelam Tyagi, Jeremiah de Leon, Charles Tran, Seungjong Oh, Paul Renz, Andrea Shessel, Edward Taylor, Martijn P.W. Intven, Gert J. Meijer   +28 more
doaj   +1 more source

Investigating the effect of a magnetic field on dose distributions at phantom-air interfaces using PRESAGE® 3D dosimeter and Monte Carlo simulations. [PDF]

, 2018
Dosimetric quality assurance (QA) of the new Elekta Unity (MR-linac) will differ from the QA performed of a conventional linac due to the constant magnetic field, which creates an electron return effect (ERE).
Adamovics, J, Billas, I, Costa, F, Doran, SJ, Duane, S, Hanson, IM, Nill, S, Oelfke, U, Shipley, D   +8 more
core   +1 more source

MR-linac is the best modality for lung SBRT [PDF]

Journal of Applied Clinical Medical Physics, 2019
The introduction of MR‐linac hybrid modality started a new era in image guidance for radiotherapy. It provides superior soft tissue contrast compared to conventional x‐ray imaging, and offers the ability to track and gate treatment delivery, yet challenges and limitations remain in various aspects.1 Our previous Parallel Opposed issues discussed the ...
Godley, Andrew
core   +5 more sources

Patient expectation and experience of MR-guided radiotherapy using a 1.5T MR-Linac

Technical Innovations & Patient Support in Radiation Oncology
Background and Purpose: Online adaptive MR-guided radiotherapy (MRgRT) is a relatively new form of radiotherapy treatment, delivered using a MR-Linac. It is unknown what patients expect from this treatment and whether these expectations are met.
S.R. de Mol van Otterloo, J.M. Westerhoff, T. Leer, R.H.A. Rutgers, L.T.C. Meijers, L.A. Daamen, M.P.W. Intven, H.M. Verkooijen   +7 more
doaj   +1 more source

Letter to the Editor

Clinical and Translational Radiation Oncology
This is a Letter to the Editor in response to the manuscript titled, “Treatment planning for MR-guided SBRT of pancreatic tumors on a 1.5 T MR-Linac: A global consensus protocol” by Grimbergen et al.
Michael D. Chuong, Ali Hosni, Jordan Kharofa, Marsha Reyngold, Nina Sanford, Mamen Rubio Rodriguez, Laura Dawson   +6 more
doaj   +1 more source