نتایج جستجو برای: dentomaxillofacial radiography

تعداد نتایج: 19606  

Journal: :Nigerian journal of clinical practice 2013
O C Okpala C Okafor M E Aronu

BACKGROUND With soaring advances in the field of medicine, the place of older radiologic imaging modalities is being reduced to basic screening tools. Yet the modern imaging modalities like computerized tomography (CT), magnetic resonance imaging (MRI), ultrasound and nuclear medicine are hardly available. STUDY OBJECTIVES To study the frequency of various indications of plain chest radiograp...

Journal: :Radiologic technology 2012
Quentin T Moore Steven Don Marilyn J Goske Keith J Strauss Mervyn Cohen Tracy Herrmann Robert Macdougall Lauren Noble Greg Morrison Susan D John Lois Lehman

Digital radiography has become the norm in U.S. hospitals. The ability to view images, postprocess, and transmit the images systemwide immediately are distinct advantages. Yet, these technical advances create challenges for the radiology community, including the need to re-educate the workforce and prevent unnecessary radiation exposure. This education process is even more important for those w...

Journal: :Nagoya journal of medical science 1994
N Milla K Ito M Ikeda K Nakamura M Hirose T Ishigaki

Fundamental and clinical evaluation of chest CT imaging in detectability of pulmonary nodules was carried out in comparison with projection chest radiography including conventional screen-film system, advanced multiple beam equalization radiography (AMBER System), and computed radiography with imaging plate (CR). Detectability of simulated nodules in the fundamental study and of metastatic pulm...

2017
Elham Pishbin Koorosh Ahmadi Molood Foogardi Maryam Salehi Farrokh Seilanian Toosi Vafa Rahimi-Movaghar

PURPOSE Rib fractures are the most common skeletal thoracic injuries resulting from blunt chest trauma. Half of the rib fractures are not detected upon a precise physical evaluation and radiographs. Recently ultrasonography (USG) has been investigated to detect rib fractures. But based on literature the usefulness of USG varies widely. This study was conducted to investigate the role of USG in ...

2016
Maud Lundén Bodil T. Andersson Solveig M. Lundgren

When investigating the general state of radiography, an allied health care education in Sweden, one possible starting point is to conduct a review of Bachelor theses from radiography education programmes. The nature and function of the thesis can have an academic or professional perspective or a combination of both. The review of the theses can give insight into both the current state and the f...

Journal: :مجله تحقیق در علوم دندانپزشکی و فک و دهان 0
mehralizade s nemati anaraki s sakhdari s miraba s amiri siavashani m bayat s

abstract background and aim: considering the importance of detection of secondary caries, the adverse consequences of false positive and false negative diagnoses and the gap of information in the diagnostic efficacy of digital sensors in detection of secondary caries, this in vitro study sought to compare the diagnostic efficacy of two different resolutions of radiographs obtained by photostimu...

2008
Hazem M. El-Bakry Nikos Mastorakis

In this paper, a new fast algorithm for dental diseases detection is presented. Such algorithm relies on performing cross correlation in the frequency domain between input image and the input weights of fast neural networks (FNNs). It is proved mathematically and practically that the number of computation steps required for the presented FNNs is less than that needed by conventional neural netw...

Journal: :Diagnostic and interventional radiology 2014
Tolga İnal Gökçe Ataç

PURPOSE We aimed to determine the radiation doses delivered to patients undergoing general examinations using computed or digital radiography systems in Turkey. MATERIALS AND METHODS Radiographs of 20 patients undergoing posteroanterior chest X-ray and of 20 patients undergoing anteroposterior kidney-ureter-bladder radiography were evaluated in five X-ray rooms at four local hospitals in the ...

Journal: :Radiographics : a review publication of the Radiological Society of North America, Inc 2007
Markus Körner Christof H Weber Stefan Wirth Klaus-Jürgen Pfeifer Maximilian F Reiser Marcus Treitl

During the past two decades, digital radiography has supplanted screen-film radiography in many radiology departments. Today, manufacturers provide a variety of digital imaging solutions based on various detector and readout technologies. Digital detectors allow implementation of a fully digital picture archiving and communication system, in which images are stored digitally and are available a...

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