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Routing User Guide | Routing Overview |
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How On-Demand Routing Works
On-demand routing uses the same infrastructure as autorouting. However, in on-demand routing, exams to be routed are manually selected by a VistARad user, rather than being identified automatically by a Routing Gateway. With the proper security keys, on-demand routing is available to any VistARad user in the routing system.
The following figure illustrates the transfer of images between a local and remote VistARad workstation using on-demand routing.1 On-demand routing can also be used to transfer images to a DICOM destination such as a film printer or an external PACS.
Exams available | | VistARad used to | | Routing G/W | | Images |
in VistARad | | queue exams for | | copies images | | reviewed |
| | |
exam lists | | on-demand routing | | to destination | | at destination |
VistARad login | VistA | | Remote VistARad login |
| HIS | Sending Site | Destination Site |
| |
| Route | | |
| Request | | |
VistARad (sending site) | | Routing Gateway | VistARad (destination site) |
| | (Trans. Processor) | |
Images | | | Local image copies |
| Image Archive | | Remote Storage |
| | | Destination |
Selecting Images for On-Demand Routing
VistARad’s Route Request dialog is used to select the exams to be routed on-demand and to indicate where exams are to be sent. When a user accepts the settings in the Route Request dialog, the exams are checked by VistARad to see if they can be routed (images present, available in short-term storage, etc.). Then entries for each image in the selected exams are added to the transmission queue.
Once an exam has been added to the transmission queue, on-demand routing functions in the same way as autorouting.
1This figure illustrates on-demand routing being initiated from the site with a local Routing Gateway. On-demand routing can also be initiated from a destination site, as long as the destination site is logged into the location (division) where the exams to be routed were acquired.
April 2006 | VistA Imaging V. 3.0, Patch 18 | 7 |