نتایج جستجو برای: diagnostic radiography

تعداد نتایج: 308827  

2015
Kavita Madan Sudhindra Baliga Nilima Thosar Nilesh Rathi

Dental radiography is considered to be a diagnostic tool for a proper treatment planning of the disorders of oral cavity like periodontal diseases, diff erent oral pathologies, and dental caries. In pediatric dentistry, radiography is a part of daily practice because of its unusual and unique role. As the child is brought in the clinic for the 1st time, radiology has been proven to be an accept...

2007

Radiographic contrast-enhancement mask (RCM) algorithms were developed to overcome some limitations of general digital radiography (DR). Large attenuation differences of some anatomical regions result in exit radiation having a wide dynamic range. In general radiography, this results in anatomy not being fully visualised in the image or being displayed with suboptimal contrast. Physical tissue ...

2018
Natasha Kirby

Forensic radiography has been used since 1895 to settle court cases and convince the judge or jury using pictures as evidence. Many diagnostic radiographers will image paediatric patients for suspected physical injury at some point during their career. Some radiographers may work in areas that experience high crime rates, for example where guns or knives are used in attacks or where there are i...

Journal: :Radiation protection dosimetry 2008
L Lança A Silva E Alves F Serranheira M Correia

Typical distribution of exposure parameters in plain radiography is unknown in Portugal. This study aims to identify exposure parameters that are being used in plain radiography in the Lisbon area and to compare the collected data with European references [Commission of European Communities (CEC) guidelines]. The results show that in four examinations (skull, chest, lumbar spine and pelvis), th...

Journal: :The Laryngoscope 2007
Mark G Shrime Paul E Johnson Michael G Stewart

OBJECTIVES To compare the cost effectiveness of plain film radiography, computed tomography (CT), and endoscopy as initial diagnostic modalities in adult patients complaining of retained ingested foreign bodies. DESIGN A systematic literature review was conducted to determine key statistics for the analysis, such as prevalence of disease, prevalence of complications, and the sensitivity and s...

Journal: :Sensors 2021

The global COVID-19 pandemic that started in 2019 and created major disruptions around the world demonstrated imperative need for quick, inexpensive, accessible reliable diagnostic methods would allow detection of infected individuals with minimal resources. Radiography, more specifically, chest radiography, is a relatively inexpensive medical imaging modality can potentially offer solution dia...

Journal: :JBR-BTR : organe de la Societe royale belge de radiologie (SRBR) = orgaan van de Koninklijke Belgische Vereniging voor Radiologie 2006
S Van de Perre F M Vanhoenacker C Geniets P Van Dyck J Gielen I Samson P M Parizel

Diagnostic imaging plays a pivotal role in the initial detection, characterization, pre-operative assessment and long term follow-up of malignant bone tumors. The purpose of this brief review is to discuss the specific role of the different imaging modalities in the diagnostic work-up of malignant bone tumors. The imaging features, with emphasis on standard radiography, allowing differentiation...

2012
Á. Ástvaldsdóttir K. Åhlund W. P. Holbrook B. de Verdier S. Tranæus

The aim of the present study was to compare the diagnostic accuracy/efficacy of digital imaging fiber-optic transillumination (DIFOTI) with film and digital radiography, in detection of approximal caries lesions. One hundred and twelve approximal surfaces were scored for caries, using DIFOTI images film and digital radiographs. All three sets of images were examined twice by 8 observers, with a...

Journal: :International endodontic journal 2007
T Tsurumachi K Honda

AIM To present a newly developed cone beam computerized tomography system (3DX Micro-CT) and its application in endodontic surgery. SUMMARY Cone beam CT has attracted considerable attention as a new diagnostic imaging technique in dentistry. The assessment of fractured endodontic instruments and the planning of endodontic surgery present challenges that conventional radiography cannot meet su...

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