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Comparison of two methods for evaluation of the image quality of lumbar spine radiographs

Tingberg, Anders LU ; Herrmann, C.; Almén, A.; Besjakov, Jack LU ; Mattsson, Sören LU ; Sund, P.; Lanhede, B.; Kheddache, S. and Månsson, L.G. (2000) In Radiation Protection Dosimetry 90(1). p.165-168
Abstract
Two methods for visual evaluation of image quality of clinical radiographs have been compared. In visual grading analysis (VGA) specified anatomical structures in an image are visually compared with the same structures in a reference image, and in a free-response forced error (FFE) experiment - an extension of conventional ROC (receiver operating characteristics) analysis - the objective is to correctly localise known lesions. The spatial resolution and noise of digitised clinical radiographs of the lumbar spine were altered by image processing, and pathological structures were added to the images for the FFE experiment. The images were printed to film and evaluated by seven European expert radiologists using VGA and FFE. The results of... (More)
Two methods for visual evaluation of image quality of clinical radiographs have been compared. In visual grading analysis (VGA) specified anatomical structures in an image are visually compared with the same structures in a reference image, and in a free-response forced error (FFE) experiment - an extension of conventional ROC (receiver operating characteristics) analysis - the objective is to correctly localise known lesions. The spatial resolution and noise of digitised clinical radiographs of the lumbar spine were altered by image processing, and pathological structures were added to the images for the FFE experiment. The images were printed to film and evaluated by seven European expert radiologists using VGA and FFE. The results of these two different methods showed a very good agreement. In conclusion, VGA methodology can be made as solid as the FFE experiment for evaluating image quality. The simplicity of VGA makes it very suitable for implementation in clinical practice. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Radiation Protection Dosimetry
volume
90
issue
1
pages
165 - 168
publisher
Nuclear Technology Publishing
external identifiers
  • wos:000089186500029
  • scopus:0033822822
ISSN
1742-3406
language
English
LU publication?
yes
id
05174f70-7943-4b37-85a1-0476a02a468f (old id 1296934)
alternative location
http://rpd.oxfordjournals.org/cgi/content/abstract/90/1-2/165
date added to LUP
2009-07-15 15:58:03
date last changed
2017-01-01 07:01:31
@article{05174f70-7943-4b37-85a1-0476a02a468f,
  abstract     = {Two methods for visual evaluation of image quality of clinical radiographs have been compared. In visual grading analysis (VGA) specified anatomical structures in an image are visually compared with the same structures in a reference image, and in a free-response forced error (FFE) experiment - an extension of conventional ROC (receiver operating characteristics) analysis - the objective is to correctly localise known lesions. The spatial resolution and noise of digitised clinical radiographs of the lumbar spine were altered by image processing, and pathological structures were added to the images for the FFE experiment. The images were printed to film and evaluated by seven European expert radiologists using VGA and FFE. The results of these two different methods showed a very good agreement. In conclusion, VGA methodology can be made as solid as the FFE experiment for evaluating image quality. The simplicity of VGA makes it very suitable for implementation in clinical practice.},
  author       = {Tingberg, Anders and Herrmann, C. and Almén, A. and Besjakov, Jack and Mattsson, Sören and Sund, P. and Lanhede, B. and Kheddache, S. and Månsson, L.G.},
  issn         = {1742-3406},
  language     = {eng},
  number       = {1},
  pages        = {165--168},
  publisher    = {Nuclear Technology Publishing},
  series       = {Radiation Protection Dosimetry},
  title        = {Comparison of two methods for evaluation of the image quality of lumbar spine radiographs},
  volume       = {90},
  year         = {2000},
}