Results 41 to 50 of about 32,218 (289)

Pan-Canadian assessment of image guided adaptive radiation therapy and the role of the radiation therapist

Technical Innovations & Patient Support in Radiation Oncology
Purpose: Adaptive radiation therapy (ART) is a close-looped process where anatomic changes observed during treatment are identified, leading to plan modification prior to treatment delivery.
Amanda Moreira, Tara Rosewall, Yat Tsang, Patricia Lindsay, Peter Chung, Winnie Li   +5 more
doaj   +1 more source

Experimental validation of multi-fraction online adaptations in magnetic resonance guided radiotherapy

Physics and Imaging in Radiation Oncology, 2023
Background and purpose: Radiotherapy plan verification is generally performed on the reference plan based on the pre-treatment anatomy. However, the introduction of online adaptive treatments demands a new approach, as plans are created daily on ...
Madelon van den Dobbelsteen, Sara L. Hackett, Bram van Asselen, Stijn Oolbekkink, Jochem W.H. Wolthaus, J.H. Wilfred de Vries, Bas W. Raaymakers   +6 more
doaj   +1 more source

CBCT-to-CT synthesis with a single neural network for head-and-neck, lung and breast cancer adaptive radiotherapy

, 2019
Purpose: CBCT-based adaptive radiotherapy requires daily images for accurate dose calculations. This study investigates the feasibility of applying a single convolutional network to facilitate CBCT-to-CT synthesis for head-and-neck, lung, and breast ...
Berg, Cornelis AT van den, Houweling, Anette C, Kotte, Alexis NTJ, Maspero, Matteo, Savenije, Mark HF, van Heijst, Tristan CF, Verhoeff, Joost JC   +6 more
core   +1 more source

IMRT QA using machine learning: A multi-institutional validation. [PDF]

, 2017
PurposeTo validate a machine learning approach to Virtual intensity-modulated radiation therapy (IMRT) quality assurance (QA) for accurately predicting gamma passing rates using different measurement approaches at different institutions.MethodsA Virtual ...
Chan, Maria F, Deasy, Joseph O, Lim, Seng Boh, Scheuermann, Ryan, Solberg, Timothy D, Valdes, Gilmer   +5 more
core   +2 more sources

Patient-specific neural networks for contour propagation in online adaptive radiotherapy

Physics in Medicine & Biology, 2023
Abstract Objective. fast and accurate contouring of daily 3D images is a prerequisite for online adaptive radiotherapy. Current automatic techniques rely either on contour propagation with registration or deep learning (DL) based segmentation with convolutional neural networks (CNNs).
A Smolders, A Lomax, DC Weber, F Albertini   +3 more
openaire   +4 more sources

Feasibility of tumour-focused adaptive radiotherapy for bladder cancer on the MR-linac

Clinical and Translational Radiation Oncology, 2022
Bladder tumour-focused magnetic resonance image-guided adaptive radiotherapy using a 1.5 Tesla MR-linac is feasible. A full online workflow adapting to anatomy at each fraction is achievable in approximately 30 min. Intra-fraction bladder filling did not
A. Mitchell, M. Ingle, G. Smith, J. Chick, S. Diamantopoulos, E. Goodwin, T. Herbert, R. Huddart, H. McNair, U. Oelfke, S. Nill, A. Dunlop, S. Hafeez   +12 more
doaj   +1 more source

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior, Edmara Bazoni Soares Maia, Soad Fuentes‐Alabí, Courtney E. Sullivan, Monnie Abraham, Mauricio Maza, Liliana Vásquez Ponce, Regina Aparecida Garcia Lima   +7 more
wiley   +1 more source

Online adaptive magnetic resonance guided radiotherapy for pancreatic cancer: state of the art, pearls and pitfalls

Radiation Oncology, 2019
Background Different studies have proved in recent years that hypofractionated radiotherapy (RT) improves overall survival of patients affected by locally advanced, unresectable, pancreatic cancer.
Luca Boldrini, Davide Cusumano, Francesco Cellini, Luigi Azario, Gian Carlo Mattiucci, Vincenzo Valentini   +5 more
doaj   +1 more source

GPU-based ultra-fast direct aperture optimization for online adaptive radiation therapy

, 2010
Online adaptive radiation therapy (ART) has great promise to significantly reduce normal tissue toxicity and/or improve tumor control through real-time treatment adaptations based on the current patient anatomy.
Bazaraa M, Bentley J, Chunhua Men, Earl M A, Fox C, Gu X, Gu X, Hoberock J Bell N, Kokubo M, Langen K M, Li M, Li Y J, Men C, Men C, Steve B Jiang, Wong J R, Wu C, Wu Q J, Xing M Decaudin P Baogang H Xiaopeng Z, Xun Jia, Yan D, Zhang G W   +21 more
core   +1 more source

Coping of cancer patients during and after radiotherapy - a follow-up of 2 years [PDF]

, 2003
Aim: We wanted to understand coping strategies specific to different phases up to two years after radiotherapy, to identify patients who are at higher risk of mood disturbances and to characterise the association between coping strategies and ...
Aydemir, U., Dühmke, Eckhart, Fahmüller, H., Herschbach, P., Hollenhorst, H., Lenk, M., Schymura, B., Sehlen, Susanne, Song, R.   +8 more
core   +1 more source