Results 41 to 50 of about 4,374,982 (417)

The influence of MRI scan position on patients with oropharyngeal cancer undergoing radical radiotherapy [PDF]

, 2013
<p>Background: The purpose of this study was to demonstrate how magnetic resonance imaging (MRI) patient position protocols influence registration quality in patients with oropharyngeal cancer undergoing radical radiotherapy and the consequences ...
Foster, J., Glegg, M., Grose, D., Hanvey, S., James, A., McJury, M., Paterson, C., Rizwanullah, M., Tho, L.M., Thomson, M.   +9 more
core   +3 more sources

Evaluation of intrafraction couch shifts for proton treatment delivery in head‐and‐neck cancer patients: Toward optimal imaging frequency

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose Treatment planning for head‐and‐neck (H&N) cancer, in particular oropharynx, nasopharynx, and paranasal sinus cases, at our center requires noncoplanar proton beams due to the complexity of the anatomy and target location. Targeting accuracy for all beams is carefully evaluated by using image guidance before delivering proton beam ...
Nrusingh C. Biswal, Dario B. Rodrigues, Weiguang Yao, Jason K. Molitoris, Matthew E. Witek, Shifeng Chen   +5 more
wiley   +1 more source

The quality assurance of Varian enhanced dynamic wedges using Daily QA Check 2 [PDF]

Archive of Oncology, 2008
Background: Clinical implementation of enhanced dynamic wedges (EDW) requires, as any other dynamic treatment, very serious quality assurance (QA) program.
Rutonjski Laza, Kuzmanović Zoran, Baucal Milutin, Petrović Borislava, Teodorović Milan   +4 more
doaj   +1 more source

Criteria for Verification and Replanning Based on the Adaptive Radiotherapy Protocol “Best for Adaptive Radiotherapy” in Head and Neck Cancer

Life, 2022
No clear criteria have yet been established to guide decision-making for patient selection and the optimal timing of adaptive radiotherapy (ART) based on image-guided radiotherapy (IGRT).
Bartosz Bak, Agnieszka Skrobala, Anna Adamska, Joanna Kazmierska, Natalia Jozefacka, Tomasz Piotrowski, Julian Malicki   +6 more
doaj   +1 more source

SynthRAD2023 Grand Challenge dataset: generating synthetic CT for radiotherapy [PDF]

, 2023
Purpose: Medical imaging has become increasingly important in diagnosing and treating oncological patients, particularly in radiotherapy. Recent advances in synthetic computed tomography (sCT) generation have increased interest in public challenges to provide data and evaluation metrics for comparing different approaches openly.
arxiv   +1 more source

Clinical commissioning of an adaptive radiotherapy platform: Results and recommendations

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Online adaptive radiotherapy platforms present a unique challenge for commissioning as guidance is lacking and specialized adaptive equipment, such as deformable phantoms, are rare. We designed a novel adaptive commissioning process consisting of end‐to‐end tests using standard clinical resources.
Kelly Kisling, Timothy D. Keiper, Daniela Branco, Grace Gwe‐Ya Kim, Kevin L Moore, Xenia Ray   +5 more
wiley   +1 more source

Dosimetric Evaluation of Advanced Radiotherapy Techniques in Treating Patients with Prostatic Cancer [PDF]

Research in Oncology, 2017
Background: Different radiotherapy techniques were developed to deliver optimal dose to prostate cancer while sparing nearby organs at risk (OARs).Aim: To compare different dosimetric methods used to evaluate sparing of OARs and to select radiotherapy ...
Amin Amin, Somaia El Sayed, Ahmed Ezzat
doaj   +1 more source

Automatic Segmentation of Pelvic Cancers Using Deep Learning: State-of-the-Art Approaches and Challenges

Diagnostics, 2021
The recent rise of deep learning (DL) and its promising capabilities in capturing non-explicit detail from large datasets have attracted substantial research attention in the field of medical image processing.
Reza Kalantar, Gigin Lin, Jessica M. Winfield, Christina Messiou, Susan Lalondrelle, Matthew D. Blackledge, Dow-Mu Koh   +6 more
doaj   +1 more source

Functional image-based radiotherapy planning for non-small cell lung cancer: a simulation study [PDF]

, 2009
Background and purpose: To investigate the incorporation of data from single-photon emission computed tomography (SPECT) or hyperpolarized helium-3 magnetic resonance imaging (He-3-MRI) into intensity-modulated radiotherapy (IMRT) planning for non-small ...
Bates, E.L., Bragg, C.M., Hatton, M.Q.F., Ireland, R.H., Wild, J.M.   +4 more
core   +1 more source

Statistical process control to monitor use of a web‐based autoplanning tool

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the use of statistical process control (SPC) for quality assurance of an integrated web‐based autoplanning tool, Radiation Planning Assistant (RPA). Methods Automatically generated plans were downloaded and imported into two treatment planning systems (TPSs), RayStation and Eclipse, in which they were recalculated using ...
Hunter Mehrens, Raphael Douglas, Mary Gronberg, Kelly Nealon, Joy Zhang, Laurence Court   +5 more
wiley   +1 more source