Vista Imaging Vista Routing How On-Demand Routing Works, Selecting Images for On-Demand Routing

Routing User Guide Routing Overview

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