1 July 1992 Teleradiology support via narrow band ISDN and the JPEG still image compression standard
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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.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. James Blaine, G. James Blaine, Stephen M. Moore, Stephen M. Moore, Jerome R. Cox, Jerome R. Cox, Robert C. Lewis, Robert C. Lewis, Evren Senol, Evren Senol, Robert A. Whitman, Robert A. Whitman, "Teleradiology support via narrow band ISDN and the JPEG still image compression standard", Proc. SPIE 1654, Medical Imaging VI: PACS Design and Evaluation, (1 July 1992); doi: 10.1117/12.60311; https://doi.org/10.1117/12.60311
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