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Evaluation of the image quality of ink-jet printed paper copies of digital chest radiographs as compared with film : A receiver operating characteristic study

Lyttkens, Kerstin LU ; Kirkhorn, Tomas LU ; Kehler, Mikael ; Andersson, Berth ; Ebbesen, Anders ; Hochbergs, Peter LU ; Jarlman, Olof LU ; Lindberg, Claes Göran and Holmer, Nils Gunnar LU (1994) In Journal of Digital Imaging 7(2). p.61-68
Abstract

Paper copies of digital radiographs printed with the continuous ink-jet technique have proved to be of a high enough quality for demonstration purposes. We present a study on the image quality of ink-jet printed paper copies of digital chest radiographs, based on receiver operating characteristic (ROC) analysis. Eighty-three digital radiographs of a chest phatom with simulated tumors in the mediastinum and right lund, derived from a computed radiography (CR) system were presented in two series of hard copies as ink-jet printed paper copies and as laser recorded film. The images, with a matrix of 1,760×2,140 pixels, were printed with a spatial resolution of 10 pixels/mm in the CR film recorder as well as in the ink-jet printer. On film,... (More)

Paper copies of digital radiographs printed with the continuous ink-jet technique have proved to be of a high enough quality for demonstration purposes. We present a study on the image quality of ink-jet printed paper copies of digital chest radiographs, based on receiver operating characteristic (ROC) analysis. Eighty-three digital radiographs of a chest phatom with simulated tumors in the mediastinum and right lund, derived from a computed radiography (CR) system were presented in two series of hard copies as ink-jet printed paper copies and as laser recorded film. The images, with a matrix of 1,760×2,140 pixels, were printed with a spatial resolution of 10 pixels/mm in the CR film recorder as well as in the ink-jet printer. On film, every image was recorded in two versions, one optimized for the mediastinum and one for the lungs. On paper, only one image was printed; this constituted an effort to optimize both the mediastinum and the lungs. The ink-jet printed images, printed on a matt coated paper, were viewed as on-sight images with reflected light. The exdaminations were reviewed by six radiologists, and ROC curves were constructed. No significant difference was found between the performance of film and that of ink-jet paper prints. Because the cost for a paper copy is only a tenth of that of film, remarkable cost reductions can be achieved by using the ink jet technique instead. Our results show that further quality studies of ink-jet printed images are worthwhile.

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author
; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
hard copy, ink-jet printing, medical imaging, phantom, radiogrpahy digital, receiver operating characteristics (ROC), thorax
in
Journal of Digital Imaging
volume
7
issue
2
pages
61 - 68
publisher
Springer
external identifiers
  • pmid:8075185
  • scopus:0028431739
ISSN
0897-1889
DOI
10.1007/BF03168424
language
English
LU publication?
yes
id
b96ad0b0-8cea-4f69-b557-0591e7fb2659
date added to LUP
2019-05-28 22:18:47
date last changed
2024-01-01 08:12:50
@article{b96ad0b0-8cea-4f69-b557-0591e7fb2659,
  abstract     = {{<p>Paper copies of digital radiographs printed with the continuous ink-jet technique have proved to be of a high enough quality for demonstration purposes. We present a study on the image quality of ink-jet printed paper copies of digital chest radiographs, based on receiver operating characteristic (ROC) analysis. Eighty-three digital radiographs of a chest phatom with simulated tumors in the mediastinum and right lund, derived from a computed radiography (CR) system were presented in two series of hard copies as ink-jet printed paper copies and as laser recorded film. The images, with a matrix of 1,760×2,140 pixels, were printed with a spatial resolution of 10 pixels/mm in the CR film recorder as well as in the ink-jet printer. On film, every image was recorded in two versions, one optimized for the mediastinum and one for the lungs. On paper, only one image was printed; this constituted an effort to optimize both the mediastinum and the lungs. The ink-jet printed images, printed on a matt coated paper, were viewed as on-sight images with reflected light. The exdaminations were reviewed by six radiologists, and ROC curves were constructed. No significant difference was found between the performance of film and that of ink-jet paper prints. Because the cost for a paper copy is only a tenth of that of film, remarkable cost reductions can be achieved by using the ink jet technique instead. Our results show that further quality studies of ink-jet printed images are worthwhile.</p>}},
  author       = {{Lyttkens, Kerstin and Kirkhorn, Tomas and Kehler, Mikael and Andersson, Berth and Ebbesen, Anders and Hochbergs, Peter and Jarlman, Olof and Lindberg, Claes Göran and Holmer, Nils Gunnar}},
  issn         = {{0897-1889}},
  keywords     = {{hard copy; ink-jet printing; medical imaging; phantom; radiogrpahy digital; receiver operating characteristics (ROC); thorax}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{2}},
  pages        = {{61--68}},
  publisher    = {{Springer}},
  series       = {{Journal of Digital Imaging}},
  title        = {{Evaluation of the image quality of ink-jet printed paper copies of digital chest radiographs as compared with film : A receiver operating characteristic study}},
  url          = {{http://dx.doi.org/10.1007/BF03168424}},
  doi          = {{10.1007/BF03168424}},
  volume       = {{7}},
  year         = {{1994}},
}