• W Huda, J C Honeyman, C K Palmer, M M Frost, and E V Staab.
• Department of Radiology, University of Florida College of Medicine, Gainesville 32610-0374, USA.
• Acad Radiol. 1996 Feb 1; 3 (2): 110-4.

Rationale And ObjectivesWe compared computed radiography (CR) with a film digitizer as an image input device for transmitting radiographs to intensive care unit (ICU) displays.MethodsLimiting spatial resolution and low-contrast detectability performance were determined for a 600-speed screen-film combination and CR films. The same image data were transmitted to ICU displays directly from the CR or by digitizing the conventional film.ResultsCR resolution ranged from 2.5 to 3 line pairs per millimeter (Ip/ mm) depending on cassette size. Display station resolution for the CR image data was 1.5-1.9 lp/mm, but improved resolution could be achieved using display magnification modes. Film digitization resulted in a loss of resolution. Direct transmission of CR image data to display stations gave low-contrast detectability similar to that obtained with CR film.ConclusionICU teleradiology displays that use CR, rather than film digitizers, offer improved image quality and superior operational efficiency.

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