Summary
In order to provide high-quality duplicate portable chest images for the intensive care units, we have implemented two digital radiography systems, an enhanced film-digitization system and a storage phosphor computed radiography system. Films are digitized into 2048x2430x10 bit matrices using a laser film scanner. The densities in the films are corrected to that of properly exposed radiographs based on automated histogram analysis, and non-linear unsharp mask filtering is applied to enhance mediastinal and upper abdominal detail. The storage phosphor computed radiography images are obtained in the standard manner, except that the processing parameters have been modified to produce images similar in terms of density and edge enhancement to those obtained using the film duplication system. Since implementation of digital radiography in our hospital, the repeat rate has decreased by over fifty percent. We have found that the image quality of the digital images is often visually superior to that of the original radiograph as well as consistent from day to day.
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© 1993 Springer-Verlag Berlin Heidelberg
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Hoffmann, K.R. et al. (1993). High-Quality Portable Chest Images Using Enhanced Film-Digitization and Computed Radiography. In: Lemke, H.U., Inamura, K., Jaffe, C.C., Felix, R. (eds) Computer Assisted Radiology / Computergestützte Radiologie. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-49351-5_73
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DOI: https://doi.org/10.1007/978-3-642-49351-5_73
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