| 1. |
- Fridell, K, et al.
(författare)
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The impact of PACS on radiologists' work practice
- 2007
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Ingår i: Journal of digital imaging. - : Springer Science and Business Media LLC. - 0897-1889 .- 1618-727X. ; 20:4, s. 411-421
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Tidskriftsartikel (refereegranskat)
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| 2. |
- Geijer, H, et al.
(författare)
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Comparison of color LCD and medical-grade monochrome LCD displays in diagnostic radiology.
- 2007
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Ingår i: Journal of Digital Imaging. - : Springer Science and Business Media LLC. - 0897-1889 .- 1618-727X. ; 20:2, s. 114-121
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Tidskriftsartikel (refereegranskat)abstract
- Abstract In diagnostic radiology, medical-grade monochrome displays are usually recommended because of their higher luminance. Standard color displays can be used as a less expensive alternative, but have a lower luminance. The aim of the present study was to compare image quality for these two types of displays. Images of a CDRAD contrast-detail phantom were read by four radiologists using a 2-megapixel (MP) color display (143 cd/m2 maximum luminance) as well as 2-MP (295 cd/m2) and 3-MP monochrome displays. Thirty lumbar spine radiographs were also read by four radiologists using the color and the 2-MP monochrome display in a visual grading analysis (VGA). Very small differences were found between the displays when reading the CDRAD images. The VGA scores were −0.28 for the color and −0.25 for the monochrome display (p=0.24; NS). It thus seems possible to use color displays in diagnostic radiology provided that grayscale adjustment is used. Key words PACS - displays - digital imaging - luminance - image quality - monitor - medical imaging - liquid crystal display
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| 3. |
- Norrman, Eva, et al.
(författare)
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A clinical evaluation of the image quality computer program, CoCIQ
- 2005
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Ingår i: Journal of digital imaging. - : Springer Science and Business Media LLC. - 0897-1889 .- 1618-727X. ; 18:2, s. 138-144
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Tidskriftsartikel (refereegranskat)abstract
- To provide an objective way of measuring image quality, a computer program was designed that automatically analyzes the test images of a contrast-detail (CD) phantom. The program gives a quantified measurement of image quality by calculating an Image Quality Figure (IQF). The aim of this work was to evaluate the program and adjust it to clinical situations in order to find the detectable level where the program gives a reliable figure of the contrast resolution. The program was applied on a large variety of images with lumbar spine and urographic parameters, from very low to very high image qualities. It was shown that the computer program produces IQFs with small variations and there were a strong linear statistical relation between the computerized evaluation and the evaluation performed by human observers (R2 = 0.98). This method offers a fast and easy way of conducting image quality evaluations.
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