WFRF:(Eklund K)
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Are digital images good enough? A comparative study of conventional film-screen vs digital radiographs on printed images of total hip replacement.
- Eklund, K. (author)
-
- Jonsson, Kjell (author)
- Lund University,Lunds universitet,Diagnostisk radiologi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Diagnostic Radiology, (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
- Lindblom, G. (author)
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- Sanfridsson, J. (author)
- Sloth, M. (author)
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- (creator_code:org_t)
- Springer Science and Business Media LLC, 2004
- 2004
- English.
- In: European Radiology. - : Springer Science and Business Media LLC. - 0938-7994 .- 1432-1084. ; 14:5, s. 865-869
- Journal article (peer-reviewed)
Abstract
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- The aim of this study was to evaluate the inter- and intra-observer variability and to find differences in diagnostic safety between digital and analog technique in diagnostic zones around hip prostheses. In 80 patients who had had a total hip replacement (THR) for more than 2 years, a conventional image and a digital image were taken. Gruen's model of seven distinct regions of interest was used for evaluations. Five experienced radiologists observed the seven regions and noted in a protocol the following distances: stem-cement; cement-bone; and stem-bone. All images were printed on hard copies and were read twice. Weighted kappa, kappa(w), analyses were used. The two most frequently loosening regions, stem-cement region 1 and cement-bone region 7, were closely analyzed. In region 1 the five observers had an agreement of 86.75-97.92% between analog and digital images in stem-cement, which is a varied kappa(w) 0.29-0.71. For cement-bone region 7 an agreement of 87.21-90.45% was found, which is a varied kappa(w) of 0.48-0.58. All the kappa values differ significantly from nil. The result shows that digital technique is as good as analog radiographs for diagnosing possible loosening of hip prostheses.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Keyword
- comparative study
- total hip replacement
- digital radiographs
- analog radiographs
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Eklund, K.
- Jonsson, Kjell
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- Lundin, Björn
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- Sloth, M.
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- Sivberg, Bengt
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