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Detection of Porcine Bone Lesions and Fissures

Comparing Digital Selenium, Digital Luminescence, and Analog Film-Screen Radiography

Markus Zähringer1, Barbara Krug1, Karl-F. Kamm2, Gernot Wassmer3, Martin Hellmich3, Guido Winnekendonk1, Jonas Andermahr4, Axel Goßmann1 and Klaus J. Lackner1

1 Department of Radiology, University of Cologne Medical School, University of Cologne, Kerpenerstr. 62, 50924 Cologne, Germany.
2 Philips Medical Systems, Röntgenstr. 24, 22335 Hamburg, Germany.
3 Department of Medical Statistics, Informatics and Epidemiology, University of Cologne Medical School, 50924 Cologne, Germany.
4 Department of Trauma, Hand and Reconstructive Surgery, University of Cologne Medical School, 50924 Cologne, Germany.



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  		Fig. 1A. —Images of porcine ribs with subtle fissures and bone lesions. Analog film-screen images shown are from mammography film (A), 200-speed film-screen (B), and 400-speed film-screen (C).

 


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  		Fig. 1B. —Images of porcine ribs with subtle fissures and bone lesions. Analog film-screen images shown are from mammography film (A), 200-speed film-screen (B), and 400-speed film-screen (C).

 


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  		Fig. 1C. —Images of porcine ribs with subtle fissures and bone lesions. Analog film-screen images shown are from mammography film (A), 200-speed film-screen (B), and 400-speed film-screen (C).

 


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  		Fig. 1D. —Images of porcine ribs with subtle fissures and bone lesions. Digital images shown are from digital selenium radiography (D) and digital luminescence radiography (E) at dose values corresponding to 200-speed film-screen systems.

 


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  		Fig. 1E. —Images of porcine ribs with subtle fissures and bone lesions. Digital images shown are from digital selenium radiography (D) and digital luminescence radiography (E) at dose values corresponding to 200-speed film-screen systems.

 


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  		Fig. 1F. —Images of porcine ribs with subtle fissures and bone lesions. Digital images shown are from digital selenium radiography (F) and digital luminescence radiography (G) at dose values corresponding to 400-speed film-screen systems.

 


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  		Fig. 1G. —Images of porcine ribs with subtle fissures and bone lesions. Digital images shown are from digital selenium radiography (F) and digital luminescence radiography (G) at dose values corresponding to 400-speed film-screen systems.

 


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  		Fig. 2A. —Osteolyses on porcine femurs: receiver operating characteristic curves for seven imaging methods per rater. 200 = 200-speed film-screen radiography, 400 = 400-speed film-screen radiography, Mammo = mammography, Selen = digital selenium radiography, DLR = digital luminescence radiography. Graphs show trade-offs between sensitivity and specificity for reviewers 1 (A), 2 (B), 3 (C), and 4 (D) for seven imaging methods.

 


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  		Fig. 2B. —Osteolyses on porcine femurs: receiver operating characteristic curves for seven imaging methods per rater. 200 = 200-speed film-screen radiography, 400 = 400-speed film-screen radiography, Mammo = mammography, Selen = digital selenium radiography, DLR = digital luminescence radiography. Graphs show trade-offs between sensitivity and specificity for reviewers 1 (A), 2 (B), 3 (C), and 4 (D) for seven imaging methods.

 


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  		Fig. 2C. —Osteolyses on porcine femurs: receiver operating characteristic curves for seven imaging methods per rater. 200 = 200-speed film-screen radiography, 400 = 400-speed film-screen radiography, Mammo = mammography, Selen = digital selenium radiography, DLR = digital luminescence radiography. Graphs show trade-offs between sensitivity and specificity for reviewers 1 (A), 2 (B), 3 (C), and 4 (D) for seven imaging methods.

 


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  		Fig. 2D. —Osteolyses on porcine femurs: receiver operating characteristic curves for seven imaging methods per rater. 200 = 200-speed film-screen radiography, 400 = 400-speed film-screen radiography, Mammo = mammography, Selen = digital selenium radiography, DLR = digital luminescence radiography. Graphs show trade-offs between sensitivity and specificity for reviewers 1 (A), 2 (B), 3 (C), and 4 (D) for seven imaging methods.

 

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