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DOI: 10.1148/radiol.2271020045
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Detection of Monitoring Materials on Bedside Chest Radiographs with the Most Recent Generation of Storage Phosphor Plates: Dose Increase Does Not Improve Detection Performance1

Edith Eisenhuber, MD, Alfred Stadler, MD, MSc, Mathias Prokop, MD, Michael Fuchsjäger, MD, Michael Weber, MSc and Cornelia Schaefer-Prokop, MD

1 From the Department of Radiology and Ludwig Boltzmann-Institute for Clinical and Experimental Radiologic Research, University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria. Received February 6, 2002; revision requested April 15; revision received June 17; accepted August 8. Address correspondence to E.E. (e-mail: edith.eisenhuber@univie.ac.at).



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  		Figure 1a. Images of a focal area with all four techniques in one patient: (a) conventional frontal radiograph and (b) 400-speed, (c) 800-speed, and (d) 200-speed digital radiographs. The catheter (arrow) in the high-attenuation area of the mediastinum is better seen on all three digital radiographs than on the conventional radiograph.

 


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  		Figure 1b. Images of a focal area with all four techniques in one patient: (a) conventional frontal radiograph and (b) 400-speed, (c) 800-speed, and (d) 200-speed digital radiographs. The catheter (arrow) in the high-attenuation area of the mediastinum is better seen on all three digital radiographs than on the conventional radiograph.

 


View larger version (100K):

[in a new window]
  		Figure 1c. Images of a focal area with all four techniques in one patient: (a) conventional frontal radiograph and (b) 400-speed, (c) 800-speed, and (d) 200-speed digital radiographs. The catheter (arrow) in the high-attenuation area of the mediastinum is better seen on all three digital radiographs than on the conventional radiograph.

 


View larger version (99K):

[in a new window]
  		Figure 1d. Images of a focal area with all four techniques in one patient: (a) conventional frontal radiograph and (b) 400-speed, (c) 800-speed, and (d) 200-speed digital radiographs. The catheter (arrow) in the high-attenuation area of the mediastinum is better seen on all three digital radiographs than on the conventional radiograph.

 


View larger version (77K):

[in a new window]
  		Figure 2a. Images of a focal area with all four techniques in one patient: (a) conventional frontal radiograph and (b) 400-speed, (c) 800-speed, and (d) 200-speed digital radiographs. The catheter (arrow) in the low-attenuation area of the lung is seen equally well with all techniques.

 


View larger version (88K):

[in a new window]
  		Figure 2b. Images of a focal area with all four techniques in one patient: (a) conventional frontal radiograph and (b) 400-speed, (c) 800-speed, and (d) 200-speed digital radiographs. The catheter (arrow) in the low-attenuation area of the lung is seen equally well with all techniques.

 


View larger version (78K):

[in a new window]
  		Figure 2c. Images of a focal area with all four techniques in one patient: (a) conventional frontal radiograph and (b) 400-speed, (c) 800-speed, and (d) 200-speed digital radiographs. The catheter (arrow) in the low-attenuation area of the lung is seen equally well with all techniques.

 


View larger version (86K):

[in a new window]
  		Figure 2d. Images of a focal area with all four techniques in one patient: (a) conventional frontal radiograph and (b) 400-speed, (c) 800-speed, and (d) 200-speed digital radiographs. The catheter (arrow) in the low-attenuation area of the lung is seen equally well with all techniques.

 




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