نتایج جستجو برای: ray radiography

تعداد نتایج: 313003  

2015
Benjamin Dallaudière Ahmed Larbi Mathieu Lefere Anne Perozziello Olivier Hauger Florence Pommerie Bénédicte Fraboulet Denis Jacob

BACKGROUND Ultrasound (US) is a good first-line alternative for the diagnosis of bone fractures in adults as well as children. Our study shows that, compared to X-ray, in a resource-constrained environment, on-site US has a high sensitivity (98%) and specificity (96%) in the diagnosis of bone fractures. PURPOSE To compare the accuracy of on-the-spot US with conventional radiography in the scr...

Journal: :The Journal of the Canadian Chiropractic Association 2005
Paul A Oakley Donald D Harrison Deed E Harrison Jason W Haas

Radiography has been part of chiropractic diagnostics since shortly after its discovery in 1895, the same year D.D. Palmer discovered chiropractic. In fact, it was B.J. Palmer who brought x-ray to chiropractic in 1910.1 This is what led to a very interesting and rich chiropractic history of technique innovators with their varied radiographic biomechanical analysis systems. Many different x-ray ...

2016
Guang-Yu Liu Yan-Yan Shen Yan-Hong Yan Meng-Nan Yao Ji-Xiu Xue

Several tests of radiology have been designed to predict difficult laryngoscopy, but there were few relative studies of Chinese patients. Our study is to investigate the accuracy of lateral neck radiography in predicting difficult laryngoscopy in Chinese patients. The operative database of Xuanwu Hospital, Capital Medical University, was reviewed and all the patients who had performed lateral n...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان کرمان 1388

چکیده ندارد.

Journal: :iranian journal of radiation research 0
b.aghahadi department of physics, harbin institute of technology, harbin 150080. p.r. china z. zhang department of national radiation protection, atomic energy organization of iran, tehran, iran s. zareh department of medical physics, tehran university of medical sciences, tehran,iran s. sarkar department of medical physics, tehran university of medical sciences, tehran,iran p.s.tayebi department of physics, heilongjiang university, harbin 150080,p.r. china

abstract   background: the x-ray machines used for radiodiagnosis should meet certain quality assurance (qa) programmes . these are necessary to have good quality radiographs at reasonably low exposure to patients.   materials and methods: dose reduction methods in abdomen x-ray examination were carried out in 10 hospitals in tehran. this paper presents the work, which was implemented on 200 pa...

2013
M. Bech A. Tapfer A. Velroyen A. Yaroshenko B. Pauwels J. Hostens P. Bruyndonckx A. Sasov F. Pfeiffer

Novel radiography approaches based on the wave nature of x-rays when propagating through matter have a great potential for improved future x-ray diagnostics in the clinics. Here, we present a significant milestone in this imaging method: in-vivo multi-contrast x-ray imaging of a mouse using a compact scanner. Of particular interest is the enhanced contrast in regions related to the respiratory ...

Journal: :Medical physics 2008
Timothy C Szeto Christie Ann Webster Ivaylo Koprinarov J A Rowlands

Digital x-ray radiographic systems are desirable as they offer high quality images which can be processed, transferred, and stored without secondary steps. However, current clinical systems are extraordinarily expensive in comparison to film-based systems. Thus, there is a need for an economical digital imaging system for general radiology. The x-ray light valve (XLV) is a novel digital x-ray d...

Journal: :Journal of accident & emergency medicine 2000
M Lindley-Jones B J Finlayson

OBJECTIVE To study an established triage nurse x ray requesting system to determine whether sending defined groups of patients for radiography before assessment by doctors or emergency nurse practitioners (ENPs) resulted in shorter waiting times for patients without compromising quality of care. METHODS Prospective randomised controlled study of "walking wounded" patients attending a district...

2001
Indra J. Das Chee-Wai Cheng Sujatha Pai

Das/Cheng/Pai/AAPM//2002 Historical Perspective 1826 Joseph Niepce First Photograph 1836 J. M. Daguerre Concept of developer 1889 Eastman Kodak Cellulose nitrate base for emulsion 1890 Hurter &Driffield Defined the term optical density 1895 Roentgen First Radiograph 1896 Carl Schlussner First glass plate for radiography 1913 Kodak Film on Cellulose nitrate base 1918 Kodak Double emulsion film 1...

2015
Xiao-Nong Chen Zi-Jin Chen Xiao-Bo Ma Bei Ding Hua-Wei Ling Zhong-Wei Shi Nan Chen

BACKGROUND This study was to investigate the relationship among aortic artery calcification (AAC), cardiac valve calcification (CVC), and mortality in maintenance hemodialysis (MHD) patients. METHODS All MHD patients in Shanghai Ruijin Hospital in July 2011 were included. To follow up for 42 months, clinical data, predialysis blood tests, echocardiography, and lateral lumbar X-ray plain radio...

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