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Detectability of pathological lesions in lumbar spine radiography

Tingberg, Anders LU ; Båth, M.; Ruschin, Mark LU ; Grahn, Anna LU ; Besjakov, Jack LU ; Börjesson, S.; Håkansson, M.; Mattsson, Sören LU and Månsson, L.G. (2005) Medical Imaging 2005: Image Perception, Observer Performance, and Technology Assessment In Proceedings of SPIE, the International Society for Optical Engineering 5749. p.518-526
Abstract
Thirty images with added simulated pathological lesions at two different dose levels (100% and 10% dose) were evaluated with the free-response forced error experiment by nine experienced radiologists. The simulated pathological lesions present in the images were classified according to four different parameters: the position within the lumbar spine, possibility to perform a symmetrical (left-right) comparison, the lesion contrast, and the complexity of the surrounding background where the lesion was situated. The detectability of each lesion was calculated as the fraction of radiologists who successfully detected the lesion before a false positive error was made. The influence of each of the four parameters on lesion detectability was... (More)
Thirty images with added simulated pathological lesions at two different dose levels (100% and 10% dose) were evaluated with the free-response forced error experiment by nine experienced radiologists. The simulated pathological lesions present in the images were classified according to four different parameters: the position within the lumbar spine, possibility to perform a symmetrical (left-right) comparison, the lesion contrast, and the complexity of the surrounding background where the lesion was situated. The detectability of each lesion was calculated as the fraction of radiologists who successfully detected the lesion before a false positive error was made. The influence of each of the four parameters on lesion detectability was investigated. The results of the study show that the influence of lesion contrast is the most important factor for detectability. Since the dose level had a limited effect on detectability, large dose savings can be made without reducing the detectability of pathological lesions in lumbar spine radiography. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of SPIE, the International Society for Optical Engineering
volume
5749
pages
518 - 526
publisher
SPIE
conference name
Medical Imaging 2005: Image Perception, Observer Performance, and Technology Assessment
external identifiers
  • WOS:000229068500056
  • Scopus:24644489166
ISBN
9780819457196
DOI
10.1117/12.595683
language
English
LU publication?
yes
id
d7656fcd-83ae-4e5a-816a-f1b46186c9b7 (old id 1297984)
date added to LUP
2009-07-09 13:23:33
date last changed
2016-10-13 04:51:23
@misc{d7656fcd-83ae-4e5a-816a-f1b46186c9b7,
  abstract     = {Thirty images with added simulated pathological lesions at two different dose levels (100% and 10% dose) were evaluated with the free-response forced error experiment by nine experienced radiologists. The simulated pathological lesions present in the images were classified according to four different parameters: the position within the lumbar spine, possibility to perform a symmetrical (left-right) comparison, the lesion contrast, and the complexity of the surrounding background where the lesion was situated. The detectability of each lesion was calculated as the fraction of radiologists who successfully detected the lesion before a false positive error was made. The influence of each of the four parameters on lesion detectability was investigated. The results of the study show that the influence of lesion contrast is the most important factor for detectability. Since the dose level had a limited effect on detectability, large dose savings can be made without reducing the detectability of pathological lesions in lumbar spine radiography.},
  author       = {Tingberg, Anders and Båth, M. and Ruschin, Mark and Grahn, Anna and Besjakov, Jack and Börjesson, S. and Håkansson, M. and Mattsson, Sören and Månsson, L.G.},
  isbn         = {9780819457196},
  language     = {eng},
  pages        = {518--526},
  publisher    = {ARRAY(0xb945330)},
  series       = {Proceedings of SPIE, the International Society for Optical Engineering},
  title        = {Detectability of pathological lesions in lumbar spine radiography},
  url          = {http://dx.doi.org/10.1117/12.595683},
  volume       = {5749},
  year         = {2005},
}