Vista Imaging Vista Routing - Manual (Page 10)

Routing Overview Routing User Guide
What is a Routing Gateway?
A Routing Gateway locates routable images, determines where the images are to be
routed to, and sends copies of those images to other locations. Routing is a function of the
DICOM Gateway software. When properly configured, any DICOM Gateway can
function as a Routing Gateway.
Typically, a Routing Gateway runs on a dedicated computer. At sites where only a small
volume of images are produced, a Routing Gateway can coexist on the same computer as
an Image Gateway or a Text Gateway.
Routing Prerequisites
For a site to be authorized to use a routing system:
ƒ An executed Site Agreement must be filed with the VistA Imaging HSD&D group.
Note: An updated site agreement must be filed if the routing system is altered (for
example: if site information changes, if a new destination is added, or if routing
volume increases by 50% or more).
ƒ A contingency plan must be implemented at all sites in the routing system and filed
with the VistA Imaging HSD&D group. The contingency plan must contain
procedures to be followed should the routing system be unavailable.
General hardware and operational requirements for routing are summarized below. For
detailed information, contact your VistA Imaging Implementation Manager.
Infrastructure Requirements
Routing relies on the following infrastructure:
ƒ If remote interpretation is being performed, one or more VistARad diagnostic
workstations for the display of routed exams.
ƒ An operational VistA Hospital Information System, an operational Image Gateway,
and an operational Routing Gateway, configured as described in this document.
ƒ An operational Local Area Network (LAN).
ƒ An operational Wide Area Network (WAN) with sufficient bandwidth to manage the
anticipated volume of routed exams.
ƒ Windows-based servers to provide exam storage at each routing destination,
configured as described in this document.
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