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Asynchronous transfer mode technology for radiologic image communication

H K Huang1, R L Arenson, W P Dillon

  • 1Department of Radiology, University of California, San Francisco 94143-0628, USA.

AJR. American Journal of Roentgenology
|June 1, 1995
PubMed
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Asynchronous Transfer Mode (ATM) networks enable rapid transmission of medical images, like CT scans and radiographs, between hospitals. This technology significantly improves Picture Archiving and Communication Systems (PACS) and teleradiology.

Area of Science:

  • Medical Imaging and Communication Technology
  • Telemedicine and Teleradiology

Background:

  • Effective image communication is crucial for Picture Archiving and Communication Systems (PACS) and teleradiology.
  • Existing Local Area Networks (LANs) and Wide Area Networks (WANs) utilize disparate technologies for image transmission.
  • Asynchronous Transfer Mode (ATM) presents a unified technology for both LAN and WAN applications.

Purpose of the Study:

  • To evaluate the feasibility and performance of using ATM networks for transmitting medical images.
  • To assess the transmission times for CT scans and digitized radiographs between two healthcare institutions.

Main Methods:

  • Experimental transmission of CT scans and digitized radiographs between UCSF and Mount Zion Hospital.
  • Utilized an ATM WAN connection via Pacific Bell's ATM main switch, employing single-mode optical fibers.

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  • Tested performance using the ATM Optical Carrier Level 3 (OC3) specification (155 Mbits/sec).

    • Main Results:

    • Transmission of a 10-Mbyte digitized radiograph took 1.3 seconds.
    • Transmission of a 20-Mbyte CT scan took 2.7 seconds.
    • Successful implementation of an ATM WAN and LAN between the two hospitals.

    Conclusions:

    • ATM technology demonstrates high-speed and efficient transmission capabilities for medical imaging.
    • The results support the adoption of ATM for enhancing PACS and teleradiology infrastructure.
    • This project is the initial phase of a larger initiative to establish a multi-hospital ATM WAN.