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Proceedings Paper

Rapid display of radiographic images
Author(s): Jerome R. Cox; Stephen M. Moore; Robert A. Whitman; G. James Blaine; R. Gilbert Jost; L. Magnus Karlsson; Thomas L. Monsees; Gregory L. Hassen; Timothy C. David
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Paper Abstract

The requirements for the rapid display of radiographic images exceed the capabilities of widely available display, computer, and communications technologies. Computed radiography captures data with a resolution of about four megapixels. Large-format displays are available that can present over four megapixels. One megapixel displays are practical for use in combination with large-format displays and in areas where the viewing task does not require primary diagnosis. This paper describes an electronic radiology system that approximates the highest quality systems, but through the use of several interesting techniques allows the possibility of its widespread installation throughout hospitals. The techniques used can be grouped under three major system concepts: a local, high-speed image server, one or more physician's workstations each with one or more high-performance auxiliary displays specialized to the radiology viewing task, and dedicated, high-speed communication links between the server and the displays. This approach is enhanced by the use of a progressive transmission scheme to decrease the latency for viewing four megapixel images. The system includes an image server with storage for over 600 4-megapixel images and a high-speed link. A subsampled megapixel image is fetched from disk and transmitted to the display in about one second followed by the full resolution 4-megapixel image in about 2.5 seconds. Other system components include a megapixel display with a 6-megapixel display memory space and frame-rate update of image roam, zoom, and contrast. Plans for clinical use are presented.

Paper Details

Date Published: 1 July 1991
PDF: 12 pages
Proc. SPIE 1446, Medical Imaging V: PACS Design and Evaluation, (1 July 1991); doi: 10.1117/12.45260
Show Author Affiliations
Jerome R. Cox, Washington Univ. (United States)
Stephen M. Moore, Mallinckrodt Institute of Radiology/Washington Univ. Medical (United States)
Robert A. Whitman, Mallinckrodt Institute of Radiology/Washington Univ. Medical (United States)
G. James Blaine, Mallinckrodt Institute of Radiology/Washington Univ. Medical (United States)
R. Gilbert Jost, Mallinckrodt Institute of Radiology/Washington Univ. Medical (United States)
L. Magnus Karlsson, Imlogix (United States)
Thomas L. Monsees, Imlogix (United States)
Gregory L. Hassen, Imlogix (United States)
Timothy C. David, Imlogix (United States)


Published in SPIE Proceedings Vol. 1446:
Medical Imaging V: PACS Design and Evaluation

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