نتایج جستجو برای: radiography equipment

تعداد نتایج: 95821  

2017
Samantha Atkinson

Reject and repeat analysis is an integral aspect of quality assurance programs for medical imaging departments across the globe as it guides staff training, equipment set-up and department workflow. Rejected and repeated images represent unnecessary patient radiation exposure, inadequate imaging techniques and an increase in departmental expenses. The approach to reject analysis has significant...

Journal: :Research, Society and Development 2022

This study aimed at the assessment and monitoring of digital image quality parameters resulting from use portable X-ray equipment in clinical examinations. A multicentric was conducted for images produced using NOMAD® with DIGORA® ™ Optime UV computed radiography (CR) system. The evaluated terms high- low-contrast spatial resolution, contrast noise ratio (CNR), signal-to-noise (SNR). samples co...

Journal: :Brazilian journal of otorhinolaryngology 2012
Flávio Donizeti Molezini Silvio Garcia Meira Domingos Lamônica Neto Orozimbo Alves Costa Filho

UNLABELLED The unavailability of advanced imaging equipment in the operating rooms of most hospitals - as well as the fundamental importance for surgeons of immediate observation of the cochlear implants soon after their insertion - makes conventional radiography a good option. OBJECTIVE To describe a practical, fast and low-cost radiographic method, allowing for evaluation of the electrodes ...

2015
Juha Koivisto Timo Kiljunen Nils Kadesjö Xie-Qi Shi Jan Wolff

BACKGROUND The aim of this study was to assess and compare the effective doses (ICRP 103) in the ankle region of X-ray imaging resulting from a multi slice computed tomography (MSCT) device, two cone beam CT (CBCT) devices and one conventional x-ray device. METHODS Organ dose measurements were performed using 20 metal oxide field effect transistor (MOSFET) dosimeters that were placed in a cus...

Journal: :The journal of contemporary dental practice 2012
M Ashwini Kumar Bharat Mody Gopa Kumar R Nair L R Surender S Sujatha Gopal Ravi Varma K A Prasad

INTRODUCTION Transversal slicing system (TSS) of Planmeca PM 2002 CC is a tomographic technique which enables us to take cross-sectional views of jaws. Tomographic imaging modalities are commonly applied to acquire cross-sectional images of the jaws for preimplant assessment of bone. Among the available tomographic imaging modalities, panoramic radiography is the most accessible imaging system....

2007
CJ Martin

Radiography using film has been an established method for imaging the internal organs of the body for over 100 years. Surveys carried out during the 1980s identified a wide range in patient doses showing that there was scope for dosage reduction in many hospitals. This paper discusses factors that need to be considered in optimising the performance of radiographic equipment. The most important ...

2011
Belma Muhamedagic Lejla Muhamedagic

Belma Muhamedagic, Lejla Muhamedagic Faculty of Medicine, University of Sarajevo, Bosnia and Herzegovina ography-RVG, Trophy Radiologie, Croissy Beaubourg, France [now Trophy, A Kodak Company, Rochester, N.Y.]). RVG is modern diagnostic method based on use of digital roentgen. Principle is use of so called CCD chip in RVG sensor (Figure 1) that put in patient’s mouth (3). The first dental digit...

2014
Stephen P Knight

The aim of this review was to develop a radiographic optimisation strategy to make use of digital radiography (DR) and needle phosphor computerised radiography (CR) detectors, in order to lower radiation dose and improve image quality for paediatrics. This review was based on evidence-based practice, of which a component was a review of the relevant literature. The resulting exposure chart was ...

2006
Alison M. Talbot Esther L. Barrett Frances J. Barr

Radiography of the equine pelvis is indicated where physical examination or other localizing diagnostic techniques, such as intra-articular analgesia or nuclear scintigraphy, localize an abnormality to that region. Radiography techniques currently employed for diagnosis of pelvic fractures or abnormalities of the coxofemoral joints are ventrodorsal radiographs obtained with the horse under gene...

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