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Proceedings Paper

Teleradiology support via narrow band ISDN and the JPEG still image compression standard
Author(s): G. James Blaine; Stephen M. Moore; Jerome R. Cox Jr.; Robert C. Lewis; Evren Senol; Robert A. Whitman
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Paper Abstract

The importance of remote access to both radiological images and medical information has stimulated many demonstration projects utilizing a variety of telecommunications providers'' offerings. Teleradiology over modest cost channels can achieve adequate response times using a combination of narrow-band ISDN and data compression. A demonstration project, developed in collaboration with Southwestern Bell Technology Resources, Inc., utilizes the aggregate bandwidth of two B channels (achieving a rate of 120 kb/s) and a compression/ decompression implementation based on the JPEG block-oriented DCT approach. System response measurements for an Inquiry and Display Station accessing the Mallinckrodt Institute of Radiology''s (MIR) Radiology Image and Information Management (RIM) Testbed via the N-ISDN connection shows response times to be within 20 seconds. Viewing applications have been demonstrated at sites within St. Louis and at RSNA-90 in Chicago. Image quality metrics and observations are presented for a sample digitized film chest radiograph and computed radiographs of portable x-ray examinations vis a demonstration at the poster session.

Paper Details

Date Published: 1 July 1992
PDF: 6 pages
Proc. SPIE 1654, Medical Imaging VI: PACS Design and Evaluation, (1 July 1992); doi: 10.1117/12.60311
Show Author Affiliations
G. James Blaine, Mallinckrodt Institute of Radiology/Washington Univ. (United States)
Stephen M. Moore, Mallinckrodt Institute of Radiology/Washington Univ. (United States)
Jerome R. Cox Jr., Washington Univ. (United States)
Robert C. Lewis, Washington Univ. (United States)
Evren Senol, Mallinckrodt Institute of Radiology/Washington Univ. (United States)
Robert A. Whitman, Mallinckrodt Institute of Radiology/Washington Univ. (United States)

Published in SPIE Proceedings Vol. 1654:
Medical Imaging VI: PACS Design and Evaluation
R. Gilbert Jost M.D., Editor(s)

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