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The influence of different technique factors on image quality of lumbar spine radiographs as evaluated by established CEC image criteria

Almen, A; Tingberg, Anders LU ; Mattsson, Sören LU ; Besjakov, Jack LU ; Kheddache, S; Lanhede, B; Månsson, L G and Zankl, M (2000) In British Journal of Radiology 73(875). p.1192-1199
Abstract
In this study we have investigated the image quality of lumbar spine radiographs taken after recording technical and physical parameters. Two technical parameters were altered, tube voltage (70 kV and 90 kV for the anteroposterior (AP) projection and 77 kV and 95 kV for the lateral projection) and sensitivity of the film-screen system (sensitivity class 400 and 600). In total, 85 images were included in the study. Entrance surface dose (ESD) was measured using thermoluminescent dosemeters. The mean value of ESD for the different technique groups varied between 1.9 mGy (90 kV, sensitivity class 400) and 4.6 mGy (70 kV, sensitivity class 400) for the AP projection, and between 6.4 mGy (95 kV, sensitivity class 600) and 20.4 mGy (70 kV,... (More)
In this study we have investigated the image quality of lumbar spine radiographs taken after recording technical and physical parameters. Two technical parameters were altered, tube voltage (70 kV and 90 kV for the anteroposterior (AP) projection and 77 kV and 95 kV for the lateral projection) and sensitivity of the film-screen system (sensitivity class 400 and 600). In total, 85 images were included in the study. Entrance surface dose (ESD) was measured using thermoluminescent dosemeters. The mean value of ESD for the different technique groups varied between 1.9 mGy (90 kV, sensitivity class 400) and 4.6 mGy (70 kV, sensitivity class 400) for the AP projection, and between 6.4 mGy (95 kV, sensitivity class 600) and 20.4 mGy (70 kV, sensitivity class 400) for the lateral projection. Image criteria given in the "European Guidelines on Quality Criteria for Radiographic Images" were used to assess image quality. Two evaluation methods have been employed. A straightforward scoring of fulfilled image criteria, and visual grading analysis using the structures defined in the image criteria. The latter method provided a sharper distinction between groups of images taken using different radiographic techniques. The average number of fulfilled image criteria for the AP projections varied between 0.74 (90 kV, sensitivity class 400) and 0.87 (70 kV, sensitivity class 400). For the lateral projection this number varied between 0.79 (95 kV, sensitivity class 600) and 0.84 (77 kV, sensitivity class 600). This study shows that image criteria are useful tools in clinical studies of image quality. (Less)
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Contribution to journal
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published
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in
British Journal of Radiology
volume
73
issue
875
pages
1192 - 1199
publisher
British Inst Radiology
external identifiers
  • pmid:11144797
  • wos:000165710800009
  • scopus:0033664755
ISSN
1748-880X
language
English
LU publication?
yes
id
2263f056-60d3-45c0-a982-a1a7718e012d (old id 1117605)
alternative location
http://bjr.birjournals.org/cgi/content/abstract/73/875/1192
date added to LUP
2008-06-27 10:29:44
date last changed
2017-09-03 04:31:32
@article{2263f056-60d3-45c0-a982-a1a7718e012d,
  abstract     = {In this study we have investigated the image quality of lumbar spine radiographs taken after recording technical and physical parameters. Two technical parameters were altered, tube voltage (70 kV and 90 kV for the anteroposterior (AP) projection and 77 kV and 95 kV for the lateral projection) and sensitivity of the film-screen system (sensitivity class 400 and 600). In total, 85 images were included in the study. Entrance surface dose (ESD) was measured using thermoluminescent dosemeters. The mean value of ESD for the different technique groups varied between 1.9 mGy (90 kV, sensitivity class 400) and 4.6 mGy (70 kV, sensitivity class 400) for the AP projection, and between 6.4 mGy (95 kV, sensitivity class 600) and 20.4 mGy (70 kV, sensitivity class 400) for the lateral projection. Image criteria given in the "European Guidelines on Quality Criteria for Radiographic Images" were used to assess image quality. Two evaluation methods have been employed. A straightforward scoring of fulfilled image criteria, and visual grading analysis using the structures defined in the image criteria. The latter method provided a sharper distinction between groups of images taken using different radiographic techniques. The average number of fulfilled image criteria for the AP projections varied between 0.74 (90 kV, sensitivity class 400) and 0.87 (70 kV, sensitivity class 400). For the lateral projection this number varied between 0.79 (95 kV, sensitivity class 600) and 0.84 (77 kV, sensitivity class 600). This study shows that image criteria are useful tools in clinical studies of image quality.},
  author       = {Almen, A and Tingberg, Anders and Mattsson, Sören and Besjakov, Jack and Kheddache, S and Lanhede, B and Månsson, L G and Zankl, M},
  issn         = {1748-880X},
  language     = {eng},
  number       = {875},
  pages        = {1192--1199},
  publisher    = {British Inst Radiology},
  series       = {British Journal of Radiology},
  title        = {The influence of different technique factors on image quality of lumbar spine radiographs as evaluated by established CEC image criteria},
  volume       = {73},
  year         = {2000},
}