Results 21 to 30 of about 11,253,180 (206)

Radiation Protection Evaluations Following the Installations of Two Cardiovascular Digital X-ray Fluoroscopy Systems

open access: yesApplied Sciences, 2021
Acceptance testing and commission are essential elements of the quality assurance program for imaging equipment. We present the results of a performance evaluation of Flat Panel-Based Cardiovascular Fluoroscopy X-ray Systems as a part of acceptance ...
Ibrahim I. Suliman   +2 more
doaj   +1 more source

A moving fluoroscope to capture tibiofemoral kinematics during complete cycles of free level and downhill walking as well as stair descent. [PDF]

open access: yesPLoS ONE, 2017
Videofluoroscopy has been shown to provide essential information in the evaluation of the functionality of total knee arthroplasties. However, due to the limitation in the field of view, most systems can only assess knee kinematics during highly ...
Renate List   +7 more
doaj   +1 more source

Image intensifier-guided percutaneous drilling for osteoid osteoma of the proximal femur [PDF]

open access: yesThe Egyptian Orthopaedic Journal, 2016
PurposeThe aim of this study was to evaluate the efficacy of image intensifier-guided percutaneous drilling destruction of the nidus as a minimally invasive surgery for osteoid osteoma (OO) of the proximal femur.BackgroundOO is a painful, benign, small ...
El-Negery Abed
doaj   +1 more source

Reducing Systematic Centroid Errors Induced by Fiber Optic Faceplates in Intensified High-Accuracy Star Trackers

open access: yesSensors, 2015
Compared with traditional star trackers, intensified high-accuracy star trackers equipped with an image intensifier exhibit overwhelmingly superior dynamic performance.
Kun Xiong, Jie Jiang
doaj   +1 more source

Characterizing an image intensifier in an full-field range image system [PDF]

open access: yes, 2008
We are developing a high precision full-field range imaging system. An integral component in this system is an image intensifier, which is modulated at frequencies up to 100 MHz.
Payne, Andrew D.   +3 more
core   +1 more source

Characterization of modulated time-of-flight range image sensors [PDF]

open access: yes, 2009
A number of full field image sensors have been developed that are capable of simultaneously measuring intensity and distance (range) for every pixel in a given scene using an indirect time-of-flight measurement technique.
Payne, Andrew D.   +3 more
core   +1 more source

Radiation Dose Assessment of the Fog Lead Acrylic Shields during Coronary Angiography: A Phantom Study

open access: yesApplied Sciences, 2021
This study aimed to evaluate the effects of fogging on the effectiveness of a lead glass shield in protecting an operator from radiation exposure during conventional coronary angiography (CAG).
Hsin-Hon Lin   +4 more
doaj   +1 more source

Typical air kerma area product values for trauma orthopaedic surgical procedures

open access: yesRadiology and Oncology, 2021
The aim of study was to establish the typical radiation quantity values for the most common trauma orthopaedic surgical procedures and to compare them with reference values of equivalent procedures performed in other institutions.
Skrk Damijan   +3 more
doaj   +1 more source

Development of a real-time full-field range imaging system [PDF]

open access: yes, 2009
This article describes the development of a full-field range imaging system employing a high frequency amplitude modulated light source and image sensor.
A. A. Dorrington   +9 more
core   +1 more source

A method for measuring the quality parameters of image intensifier based on projecting phase-shifting gratings [PDF]

open access: yes, 2018
A method for measuring the quality parameters of image intensifier based on projecting phase-shifting gratings is proposed. A set of designed phase-shifting gratings are projected into the measuring system orderly to obtain the magnification parameter of
Cao, Y.   +5 more
core   +1 more source

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