Results 41 to 50 of about 39,485 (283)

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

The future of image-guided radiotherapy will be MR guided [PDF]

The British Journal of Radiology, 2017
Advances in image-guided radiotherapy (RT) have allowed for dose escalation and more precise radiation treatment delivery. Each decade brings new imaging technologies to help improve RT patient setup. Currently, the most frequently used method of three-dimensional pre-treatment image verification is performed with cone beam CT.
Julianne M, Pollard, Zhifei, Wen, Ramaswamy, Sadagopan, Jihong, Wang, Geoffrey S, Ibbott   +4 more
openaire   +2 more sources

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

Case Report: MR-LINAC-guided adaptive radiotherapy for gastric cancer

Frontiers in Oncology, 2023
BackgroundThe stomach is one of the most deformable organs. Its shape can be easily affected by breathing movements, and daily diet, and it also varies when the body position is different.
Yajun Song, Yajun Song, Yun Zhang, Huadong Wang, Huadong Wang, Mengyu Zhao, Fada Guan, Zhenjiang Li, Jinbo Yue   +8 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

Clinical Outcomes of Prostate SBRT Using Non-adaptive MR-Guided Radiotherapy. [PDF]

Cancer Control
Objectives Stereotactic body radiotherapy (SBRT) is widely used for localized prostate cancer and implementation of MR-guided radiotherapy has the advantage of tighter margins and improved sparing of organs at risk. Here we evaluate outcomes and time required to treat using non-adaptive MR-guided SBRT (MRgSBRT) for localized prostate cancer at our ...
Sandoval ML, Rishi A, Latifi K, Grass GD, Torres-Roca J, Rosenberg SA, Yamoah K, Johnstone PAS.   +7 more
europepmc   +4 more sources