Results 91 to 100 of about 1,781,037 (346)

From 2D to 3D gamma passing rate tolerance and action limits for patient‐specific quality assurance in volumetric‐modulated arc therapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Volumetric modulated arc therapy (VMAT) requires an accurate patient‐specific quality assurance (PSQA) program. In clinical practice, this is usually performed using the γ‐index and the two‐dimensional gamma passing rate (2D %GP). A three‐dimensional (3D) index incorporating the patient anatomy could be more useful for the 3D dose ...
Christos Zarros, George Patatoukas, Nikos Kollaros, Marina Chalkia, Andromachi Kougioumtzopoulou, Vasilios Kouloulias, Kalliopi Platoni   +6 more
wiley   +1 more source

Visualizing the Computational Intelligence Field [PDF]

IEEE Computational Intelligence Magazine, 2006
In this paper, we visualize the structure and the evolution of the computational intelligence (CI) field. Based on our visualizations, we analyze the way in which the CI field is divided into several subfields. The visualizations provide insight into the characteristics of each subfield and into the relations between the subfields.
Jan van den Berg, Uzay Kaymak, Ludo Waltman, Nees Jan van Eck   +3 more
openaire   +3 more sources

Modelling of a double‐scattering proton therapy nozzle using the FLUKA Monte Carlo code and analysis of linear energy transfer in patients treated for prostate cancer

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background The dose‐averaged linear energy transfer (LETD) in proton therapy (PT) has in pre‐clinical studies been linked to the relative biological effectiveness (RBE) of protons. Until recently, the most common PT delivery method in prostate cancer has been double‐scattered PT, with LETD only available through dedicated Monte Carlo (MC ...
Rasmus Klitgaard, Lars Fredrik Fjæra, Camilla Hanquist Stokkevåg, Perry Johnson, Mark Artz, Nancy Price Mendenhall, Curtis Bryant, Ludvig Paul Muren   +7 more
wiley   +1 more source

Central Retinal Artery Occlusion After Nasosinal Surgery – an Insight

International Medical Case Reports Journal, 2020
Somya Chowdhary,1 Vivek Sawhney,2 Abhijit Pandya,2 Kumar Sambhav,3 Shailesh K Gupta2 1Bascom Palmer Eye Institute, University of Miami, Miami, FL, USA; 2Specialty Retina Centre, Coral Springs, FL, USA; 3Department of Ophthalmology, University of Florida,
Chowdhary S, Sawhney V, Pandya A, Sambhav K, Gupta SK   +4 more
doaj  

VISUAL FIELDS

Optometry and Vision Science, 1936
Mode of access: Internet.
openaire   +1 more source

A review of artificial intelligence in brachytherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Artificial intelligence (AI) has the potential to revolutionize brachytherapy's clinical workflow. This review comprehensively examines the application of AI, focusing on machine learning and deep learning, in various aspects of brachytherapy.
Jingchu Chen, Richard L. J. Qiu, Tonghe Wang, Shadab Momin, Xiaofeng Yang   +4 more
wiley   +1 more source

Does the World Health Organization criterion adequately define glaucoma blindness?

Clinical Ophthalmology, 2017
P Mokhles, JSAG Schouten, HJM Beckers, CAB Webers University Eye Clinic Maastricht, Maastricht, the Netherlands Purpose: Blindness in glaucoma is difficult to assess with merely the use of the current World Health Organization (WHO) definition (a ...
Mokhles P, Schouten JSAG, Beckers HJM, Webers CAB   +3 more
doaj  

Visual Discomfort and Depth-of-Field

i-Perception, 2013
Visual discomfort has been reported for certain visual stimuli and under particular viewing conditions, such as stereoscopic viewing. In stereoscopic viewing, visual discomfort can be caused by a conflict between accommodation and convergence cues that may specify different distances in depth.
O'Hare, Louise, Zhang, Tingting, Nefs, Harold T, Hibbard, Paul B   +3 more
openaire   +7 more sources

Impact of enhanced leaf model on dose calculation accuracy in single‐isocenter multitarget stereotactic radiosurgery treatments

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Single‐isocenter multitarget (SIMT) radiosurgery has become increasingly popular as advancement in planning and delivery systems have made this approach clinically viable. With targets varying in size and distance from isocenter, SIMT plans are highly complex with dynamic multileaf collimator (MLC) motion.
Hem Moktan, Hongyu Jiang, H. Harold Li, Kenny Guida   +3 more
wiley   +1 more source

Vector field visualization with streamlines [PDF]

arXiv, 2006
We have recently developed an algorithm for vector field visualization with oriented streamlines, able to depict the flow directions everywhere in a dense vector field and the sense of the local orientations. The algorithm has useful applications in the visualization of the director field in nematic liquid crystals.
arxiv