Results 31 to 40 of about 13,480,944 (399)
Treatment planning with a 2.5 MV photon beam for radiation therapy
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi +5 more
wiley +1 more source
Concentric Reversible Visual Field Loss, Nyctalopia, and Dyschromatopsia with Ezetimibe Therapy
Case Reports in Ophthalmology, 2023 This is a case of ezetimibe-induced concentric field loss, dyschromatopsia, and nyctalopia in a patient with no prior history of retinal dystrophy or drug hypersensitivity.
Zhengchao Xu +2 more
doaj +1 more source
Inhibition of Return in the visual field [PDF]
, 2013 Inhibition of return (IOR) as an indicator of attentional control is characterized by an eccentricity effect, that is, the more peripheral visual field shows a stronger IOR magnitude relative to the perifoveal visual field.
Bao Y. +9 more
core +1 more source
Interventions for visual field defects in people with stroke.
Cochrane Database of Systematic Reviews, 2019 BACKGROUND Visual field defects are estimated to affect 20% to 57% of people who have had a stroke. Visual field defects can affect functional ability in activities of daily living (commonly affecting mobility, reading and driving), quality of life ...
A. Pollock +8 more
semanticscholar +1 more source
Volume staging for arteriovenous malformation SRS treatment using VMAT
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Volume staging involves dividing the target volume into smaller parts and treating each part separately. In this study, the feasibility of volume‐staged stereotactic radiosurgery (VS‐SRS) on a linear accelerator using volumetric modulated arc therapy (VMAT) and a frameless patient positioning system is investigated.
Claudia Mendez, Ermias Gete
wiley +1 more source
A qualitative exploration of the effect of visual field loss on daily life in home-dwelling stroke survivors [PDF]
, 2019 Objective: To explore the effect of visual field loss on the daily life of community-dwelling stroke survivors. Design: A qualitative interview study.
Alex Pollock +18 more
core +2 more sources
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract This study aims to investigate the effects of the position correction of size‐specific dose estimates (SSDE) on patient dose estimation in cone beam computed tomography (CBCT). The relationship between the phantom position and absorbed dose in the right breast was studied using optically stimulated luminescence dosimeters and a simulated human
Hiroyuki Ueno +3 more
wiley +1 more source
The time course of spatial attention shifts in elementary arithmetic [PDF]
, 2017 It has been proposed that elementary arithmetic induces spatial shifts of attention. However, the timing of this arithmetic-space association remains unknown. Here we investigate this issue with a target detection paradigm. Detecting targets in the right
Cai, Danni +3 more
core +1 more source
Visual Field Prediction using Recurrent Neural Network
Scientific Reports, 2019 Artificial intelligence capabilities have, recently, greatly improved. In the past few years, one of the deep learning algorithms, the recurrent neural network (RNN), has shown an outstanding ability in sequence labeling and prediction tasks for ...
K. Park, Jinmi Kim, Jiwoong Lee
semanticscholar +1 more source
Feedback Generates a Second Receptive Field in Neurons of Visual Cortex
Nature, 2020 Animals sense the environment through pathways that link sensory organs to the brain. In the visual system, these feedforward pathways define the classical feedforward receptive field (ffRF), the area in space in which visual stimuli excite a neuron 1 ...
Andreas J. Keller +2 more
semanticscholar +1 more source