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Proceedings Paper

Assessment of asynchronous transfer mode (ATM) networks for regional teleradiology
Author(s): Andre J. Duerinckx; Alek S. Hayrapetian; Daniel J. Valentino; Edward G. Grant; Darius Rahbar; Mike Kiszonas; Ricky Franco; Guy H. Shimabuku; Girish T. Hagan; Michelle Melany; Sherelle L. Narin; Nagesh Ragavendra
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Paper Abstract

The purpose of this study was to assess the effect of ATM network capabilities on the clinical practice of regional teleradiology, by providing immediate interactive radiology consultations between subspecialists and general radiologists at affiliated academic institutions. PACS installed at three affiliated hospitals (UCLA Medical Center, West LA VAMC and UCLA Olive-View Medical Centers) were connected via an ATM network. Two commercial PACS (Agfa) systems, one at the VAMC and one in an ultrasound outpatient clinic at UCLA were connected via ATM switches (Newbridge, Inc.) and a Santa Monica GTE central office switch. We evaluated this initial system configuration and measured image transfer performance, including memory-to-memory, disk-to-disk, disk-to-archive with and without DICOM protocols. Although the memory-to-memory data rate was 25 Mbps, the average remote disk-to-disk image transfer performance, using DICOM 3.0 communications protocols on SUN SPARCstation 10 servers, was 3 to 5 Mbps. Using these capabilities, timely interactive subspecialty consultations between radiologists was successfully performed while both were at different physical locations. We present the use of ATM technology in a realistic clinical environment and evaluate its impact on patient care and clinical teaching within the radiology departments of 2 institutions. Image communications over a regional PACS using an ATM network can allow interactive consultations between different subspecialist and general radiologists or other specialized radiologist spread over three different medical centers.

Paper Details

Date Published: 1 May 1996
PDF: 10 pages
Proc. SPIE 2711, Medical Imaging 1996: PACS Design and Evaluation: Engineering and Clinical Issues, (1 May 1996); doi: 10.1117/12.239298
Show Author Affiliations
Andre J. Duerinckx, West Los Angeles Veterans Affairs Medical Ctr. (United States)
UCLA School of Medicine (United States)
Alek S. Hayrapetian, West Los Angeles Veterans Affairs Medical Ctr. (United States)
UCLA School of Medicine (United States)
Daniel J. Valentino, UCLA School of Medicine (United States)
Edward G. Grant, West Los Angeles Veterans Affairs Medical Ctr. (United States)
UCLA School of Medicine (United States)
Darius Rahbar, GTE Telephone Operations (United States)
Mike Kiszonas, GTE Telephone Operations (United States)
Ricky Franco, GTE Telephone Operations (United States)
Guy H. Shimabuku, GTE Telephone Operations (United States)
Girish T. Hagan, Agfa, Div. of Bayer (United States)
Michelle Melany, West Los Angeles Veterans Affairs Medical Ctr. (United States)
UCLA School of Medicine (United States)
Sherelle L. Narin, UCLA School of Medicine (United States)
Nagesh Ragavendra, UCLA School of Medicine (United States)


Published in SPIE Proceedings Vol. 2711:
Medical Imaging 1996: PACS Design and Evaluation: Engineering and Clinical Issues
R. Gilbert Jost; Samuel J. Dwyer, Editor(s)

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