Results 101 to 110 of about 694,239 (264)
“VisualFields Easy”: an iPad Application as a Simple Tool for Detecting Visual Field Defects
Purpose/Objective: This study aims to determine the reliability of the “VisualFields Easy” application in detecting visual field loss among ophthalmology patients; and to determine the sensitivity, specificity, positive predictive and negative predictive
Angelane S. Santos, MD+1 more
doaj
A simple quality assurance test tool for the visual verification of light and radiation field congruent using electronic portal images device and computed radiography [PDF]
Christopher F. Njeh+2 more
openalex +1 more source
Abstract Purpose This study aims to evaluate the accuracy of the frameless linear accelerator‐based stereotactic radiosurgery (FSRS) system incorporating cone‐beam CT (CBCT), six degrees of freedom (6‐DoF) couch, room laser, and surface image‐guided (SG) systems.
Hao‐Wen Cheng+4 more
wiley +1 more source
Time-Variant Vector Field Visualization for Magnetic Fields of Neutron Star Simulations [PDF]
We present a novel visualization application designed to explore the time-dependent development of magnetic fields of neutron stars. The strongest magnetic fields in the universe can be found within neutron stars, potentially playing a role in initiating astrophysical jets and facilitating the outflow of neutron-rich matter, ultimately resulting in the
arxiv
Big data in visual field testing for glaucoma
Abstract: Recent technological advancements and the advent of ever-growing databases in health care have fueled the emergence of “big data” analytics. Big data has the potential to revolutionize health care, particularly ophthalmology, given the data-intensive nature of the medical specialty.
Alex T. Pham+2 more
openaire +3 more sources
Abstract Introduction The use of radioactive materials in the United States has been tightly regulated by the Nuclear Regulatory Commission and other entities for many decades. In 2015, however, the Joint Commission began to require hospital‐based nuclear medicine departments to conduct shielding designs and evaluations for radioactive material areas ...
Michael Oumano+12 more
wiley +1 more source
Retinal effects of Sildenafil in diabetic patients
Background Sildenafil has been used in the treatment of erectile dysfunction (ED). However it has the disadvantage of many visual disturbances. The aim of this work is to study the effect of sildenafil on diabetic patients which might have ocular ...
Abdul-Razzak Bahir
doaj
Template-based matching using weight maps [PDF]
Template matching is one of the most prevalent pattern recognition methods worldwide. It has found uses in most visual concept detection fields. In this work, we investigate methods for improving template matching by adjusting the weights of different regions of the template. We compare several weight maps and test the methods using the FERET face test
arxiv
A survey of attitudes of glaucoma subspecialists in England and Wales to visual field test intervals in relation to NICE guidelines [PDF]
Rizwan Malik+3 more
openalex +1 more source
Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar+8 more
wiley +1 more source