Results 41 to 50 of about 39,486 (285)

Expanding the use of real-time electromagnetic tracking in radiation oncology. [PDF]

, 2011
In the past 10 years, techniques to improve radiotherapy delivery, such as intensity-modulated radiation therapy (IMRT), image-guided radiation therapy (IGRT) for both inter- and intrafraction tumor localization, and hypofractionated delivery techniques ...
Kupelian, Patrick A, Meeks, Sanford L, Shah, Amish P, Willoughby, Twyla R   +3 more
core   +1 more source

Dosimetric validation of a magnetic resonance image gated radiotherapy system using a motion phantom and radiochromic film. [PDF]

, 2017
PurposeMagnetic resonance image (MRI) guided radiotherapy enables gating directly on the target position. We present an evaluation of an MRI-guided radiotherapy system's gating performance using an MRI-compatible respiratory motion phantom and ...
Berbeco, Brady, Chuang, Fayad, Freislederer, Garibaldi, Giraud, Jin, Keall, Kini, Koch, Lewis, Low, Malinowski, Nioutsikou, Ozhasoglu, Sanders, Seppenwoolde, Shiinoki, Shirato, Smith, Tacke, Voort, Wagman, Wiersma, Wojcieszynski, Wunderink, Yoganathan, Yousefi   +28 more
core   +1 more source

Case Report: MR-Guided Adaptive Radiotherapy, Some Room to Maneuver

Frontiers in Oncology, 2022
BackgroundA magnetic resonance linear accelerator (MR-Linac) provides superior soft tissue contrast to evaluate inter- and intra-fraction motion and facilitate online adaptive radiation therapy (ART). We present here an unusual case of locally advanced castrate-resistant prostate cancer treated with high-dose palliative ultra-hypofractionated radiation
Winnie Li, Winnie Li, Jeff Winter, Jeff Winter, Jerusha Padayachee, Jennifer Dang, Vickie Kong, Vickie Kong, Peter Chung, Peter Chung   +9 more
openaire   +3 more sources

Development of a hybrid magnetic resonance/computed tomography-compatible phantom for magnetic resonance guided radiotherapy [PDF]

, 2020
The purpose of the present study was to develop a hybrid magnetic resonance/computed tomography (MR/CT)-compatible phantom and tissue-equivalent materials for each MR and CT image.
Baek, Hyeon-Man, Choe, Bo-Young, Kim, Min-Joo, Lee, Seu-Ran, Song, Kyu-Ho, Suh, Tae Suk   +5 more
core   +1 more source

Towards the production of radiotherapy treatment shells on 3D printers using data derived from DICOM CT and MRI: preclinical feasibility studies [PDF]

, 2015
Background: Immobilisation for patients undergoing brain or head and neck radiotherapy is achieved using perspex or thermoplastic devices that require direct moulding to patient anatomy. The mould room visit can be distressing for patients and the shells
C. D. Scrase, D. B. Mortimore, D. Emmens, G. D. Bell, J. Patman, M. D. Tam, M. Hulse, McCloskey, S. C. Short, S. D. Laycock, S. Isherwood, Tam   +11 more
core   +1 more source

Patterns of CT lung injury and toxicity after stereotactic radiotherapy delivered with helical tomotherapy in early stage medically inoperable NSCLC [PDF]

, 2015
To evaluate toxicity and patterns of radiologic lung injury on CT images after hypofractionated image-guided stereotactic body radiotherapy (SBRT) delivered with helical tomotherapy (HT) in medically early stage inoperable non-small-cell lung cancer ...
Agolli, Linda, Arcangeli, S, Bracci, S, Dognini, Jessica, Donato, Vittorio, Lopergolo, M. G, Migliorino, M. R, Monaco, Alessia, Portalone, L, Pressello, M. C   +9 more
core   +1 more source

STAT-ART: The Promise and Practice of a Rapid Palliative Single Session of MR-Guided Online Adaptive Radiotherapy (ART)

Frontiers in Oncology, 2019
This work describes a novel application of MR-guided online adaptive radiotherapy (MRgoART) in the management of patients whom urgent palliative care is indicated using statum-adaptive radiotherapy (STAT-ART). The implementation of STAT-ART, as performed
Kathryn E. Mittauer, Kathryn E. Mittauer, Patrick M. Hill, Mark W. Geurts, Mark W. Geurts, Anna-Maria De Costa, Randall J. Kimple, Michael F. Bassetti, John E. Bayouth   +8 more
doaj   +1 more source

Glycerol-weighted chemical exchange saturation transfer nanoprobes allow 19F/1H dual-modality magnetic resonance imaging-guided cancer radiotherapy

Nature Communications, 2023
Recently, radiotherapy (RT) has entered a new realm of precision cancer therapy with the introduction of magnetic resonance (MR) imaging guided radiotherapy systems into the clinic. Nonetheless, identifying an optimized radiotherapy time window (ORTW) is
Rong A, Haoyu Wang, Chaoqun Nie, Zhaoguo Han, Meifang Zhou, Olagbaju Oluwatosin Atinuke, Kaiqi Wang, Xiance Wang, Shuang Liu, Jingshi Zhao, Wenju Qiao, Xiaohong Sun, Lina Wu, Xilin Sun   +13 more
doaj   +1 more source

Online adaptive MR-guided radiotherapy: Conformity of contour adaptation for prostate cancer, rectal cancer and lymph node oligometastases among radiation therapists and radiation oncologists

Technical Innovations & Patient Support in Radiation Oncology, 2022
Background and purpose: Online adaptive MR-guided treatment planning workflows facilitate daily contour adaptation to the actual anatomy. Allocating contour adaptation to radiation therapists (RTTs) instead of radiation oncologists (ROs) might allow for ...
Marnix J.A. Rasing, Gonda G. Sikkes, Nicole G.P.M. Vissers, Alexis N.T.J. Kotte, Joske H. Boudewijn, Patricia A.H. Doornaert, Wietse S.C. Eppinga, Martijn Intven, Reijer H.A. Rutgers, Annick Scheeren, Louk M.W. Snoeren, Tiny B. Vlig, Jochem R.N. van der Voort van Zyp, Lisa M. Wijkhuizen, Peter S.N. van Rossum, Max Peters, Ina M. Jürgenliemk-Schulz   +16 more
doaj   +1 more source

Radiotherapy planning for glioblastoma based on a tumor growth model: Improving target volume delineation [PDF]

, 2013
Glioblastoma are known to infiltrate the brain parenchyma instead of forming a solid tumor mass with a defined boundary. Only the part of the tumor with high tumor cell density can be localized through imaging directly.
Ayache, Nicholas, Dittmann, Florian, Konukoglu, Ender, Le, Matthieu, Menze, Bjoern H., Shih, Helen A., Unkelbach, Jan   +6 more
core   +5 more sources