dc.contributor.author | Ween, Borgny | en_US |
dc.contributor.author | Jakobsen, Jarl Åsbjørn | en_US |
dc.date.accessioned | 2016-02-09T13:38:25Z | |
dc.date.available | 2016-02-09T13:38:25Z | |
dc.date.issued | 2015-11-30 | en_US |
dc.identifier.citation | Ween, B., & Jacobsen, J. Å. (2015). Sharpness and noise in digital chest radiographs, assessed by visual rating. Radiography Open, 2(1), 30-51. | en_US |
dc.identifier.issn | 2387-3345 | en_US |
dc.identifier.other | FRIDAID 1301396 | en_US |
dc.identifier.uri | https://hdl.handle.net/10642/3003 | |
dc.description.abstract | Missed lung lesions are one of the most frequent causes of malpractice issues, caused by several
reasons; among them suboptimal radiography. When radiographers interpret acquired images of a
patient, an acceptance or rejection must be decided. When a retake is required, radiographers
need to know how to improve the image quality. Improvements in image quality properties as
contrast, sharpness and noise often lead to improved perception, which in turn should enable
more information to the observer and also allow computer-assisted detection (CAD) to be more
successful.
Our aim was to create a scoring system of the principal limiting factors sharpness and noise, in a
clinical setting, and to determine whether it is possible to agree on image quality on digital chest
radiographs. To enable a variation in rating due to body habits, a three-graded scale for each of
sharpness and noise were created. Five different anatomical landmarks in each of patients having
body sizes lean, normal and large were evaluated by 27 radiographers; totally 810 scores were
given.
The results showed a high inter-observer agreement with respect to rating grades of both
sharpness and noise, independent of projection, anatomical landmark and body habits. The
present study is a first step in the development of a scale for assessing sharpness and noise in
digital chest radiography. The method of quality assessment might become more valid with
increased use. We propose that this study can be followed up by a systematic mentor-guided
training program that links perception of image quality to feedback about the image retake
decisions if required. | en_US |
dc.language.iso | eng | en_US |
dc.relation.ispartofseries | Radiography Open;2(1) | en_US |
dc.subject | Digital imaging | en_US |
dc.subject | exposure techniques | en_US |
dc.subject | image acquiring | en_US |
dc.subject | image quality | en_US |
dc.subject | optimization | en_US |
dc.subject | radiographic interpretation | en_US |
dc.subject | VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Radiologi og bildediagnostikk: 763 | en_US |
dc.title | Sharpness and noise in digital chest radiographs, assessed by visual rating | en_US |
dc.type | Journal article | en_US |
dc.type | Peer reviewed | en_US |
dc.description.version | This work is licensed under a Creative Commons Attribution 4.0 International License | en_US |