Detectability of pathological lesions in lumbar spine radiography
(2005) Medical Imaging 2005: Image Perception, Observer Performance, and Technology Assessment 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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1297984
- author
- 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.
- organization
- publishing date
- 2005
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- 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
- conference location
- San Diego, CA, United States
- conference dates
- 2005-02-15
- 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
- 2016-04-04 12:24:36
- date last changed
- 2024-01-13 04:54:02
@inproceedings{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.}}, booktitle = {{Proceedings of SPIE, the International Society for Optical Engineering}}, isbn = {{9780819457196}}, language = {{eng}}, pages = {{518--526}}, publisher = {{SPIE}}, title = {{Detectability of pathological lesions in lumbar spine radiography}}, url = {{http://dx.doi.org/10.1117/12.595683}}, doi = {{10.1117/12.595683}}, volume = {{5749}}, year = {{2005}}, }