نتایج جستجو برای: radiography

تعداد نتایج: 19528  

Journal: :galen medical journal 0
morteza oshagh orthodontist, shiraz, iran shoaleh shahidi biomaterial research center, radiology department, shiraz university of medical sciences, shiraz, iran hooman zarif najafi orthodontic research center, orthodontics department, school of dentistry, shiraz university of medical sciences, shiraz, iran maryam saki student research commitee, shiraz university of medical sciences, shiraz

background: malocclusion, as a worldwide issue, can cause a lot of problems for patients. panoramic (pr) and lateral cephalometric (lcr) radiographs are both usually indicated for orthodontic treatments. the aim of this study was to analyze vertical and sagittal parameters of both jaws on prs and to compare them on lcrs. materials and methods: in this cross sectional study, 61 samples from all ...

Journal: :مجله دانشگاه علوم پزشکی شهید صدوقی یزد 0
آناهیتا مرامی a marami . [email protected] ربابه نورمحمدی r noormohammadi مستانه جواهری m javaheri

introduction: radiography is one of the most important diagnostic methods for evaluation of dental caries. on the other hand, the least amount of radiation along with high quality is a main gold standard. the purpose of this study was to compare the diagnostic accuracy of primax, insight radiographic films, and direct digital images (schick cmos-aps), in detection of interproximal natural carie...

Journal: :European journal of radiology 2013
M Karul P Bannas B P Schoennagel A Hoffmann U Wedegaertner G Adam J Yamamura

OBJECTIVES To investigate the accuracy of biplane radiography in the detection of fractures of the thoracic spine in patients with minor trauma using multidetector computed tomography (MDCT) as the reference and to compare the dose of both techniques. METHODS 107 consecutive trauma patients with suspected fractures of the thoracic spine on physical examination were included. All had undergone...

Journal: :JAMA 1997
I G Stiell G A Wells R H Hoag M L Sivilotti T F Cacciotti P R Verbeek K T Greenway I McDowell A A Cwinn G H Greenberg G Nichol J A Michael

CONTEXT The Ottawa Knee Rule is a previously validated clinical decision rule that was developed to allow physicians to be more selective and efficient in their use of plain radiography for patients with acute knee injuries. OBJECTIVE To assess the impact on clinical practice of implementing the Ottawa Knee Rule. DESIGN Controlled clinical trial with before-after and concurrent controls. ...

Journal: :Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association 2008
Wm Tod Drost David J Reese William J Hornof

Radiographic artifacts may mimic a clinical feature, impair image quality, or obscure abnormalities. With the development of digital radiography (DR), a new set of artifacts is introduced. Regardless of the technology, the classic technical errors that occur with film screen radiography still occur using DR. Artifacts created using computed radiography, DR, and incorrect image processing are di...

2015
Kaoru Tada

Dynamic radiography had been used for motion analysis of the wrist joint since 1980s. But only limited images could be obtained with high exposure doses in conventional equipment. In recent years, advance equipment for dynamic radiography was developed, and thus, various images could be obtained with low exposure doses and without distortion. In this session, I would like to talk about our stud...

Aims Chest radiography is the first choice for the investigation of cardiovascular and respiratory disease. Radiographer technologists are responsible for managing the radiation exposure to patients and providing adequate image quality according to the ALARA concept. The knowledge and experience of radiographers in performing chest radiography helps to improve the diagnosis of diseases. The aim...

2016
Hamid Kamalipour Sedigheh Ahmadi Karmella Kamali Alireza Moaref Masih Shafa Parsa Kamalipour

BACKGROUND Chest radiography after central venous catheter (CVC) insertion is the main method of verifying the catheter location. Despite the widespread use of radiography for detecting catheter position, x-ray may not always be readily available, especially in the operating room. OBJECTIVES We aimed to compare contrast-enhanced ultrasonography (CEUS) and chest radiography for detecting the c...

2013
Peter J. Yang George W. Seeley Raymond F. Carmody Joachim F. Seeger Mark T. Yoshino Brent Mockbee

Digital imaging is becoming widely used in diagnostic radiology, and digital subtraction angiography (DSA) is now generally accepted [1-3]. Several studies have evaluated digital imaging using a computed radiography system for chest examinations [4-10] and for excretory urography [11] . This prospective study uses receiver operating curve analysis [12 , 13] to compare the diagnostic accuracy of...

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