Vista Imaging Vista Routing - Manual (Page 13)

Routing User Guide Routing Overview
Autorouting Images from Prior Exams
Autorouting offers the option to include images from prior exams. When this option is
used in a routing rule, the Routing software will use the VistARad prefetch logic defined
at acquisition site to create a list of prior exams. Images from the prior exams will be
routed using same priority as the newly acquired image and, when appropriate, will be
purged based on the same retention period as the newly acquired image. For more details
about autorouting priors, see page
22 .
Sending Images to Destinations
The transmission of routed images is based on entries in the transmission queue. Each
entry in the transmission queue identifies the image to be routed and the destination of
the image.
The transmission queue is continually checked by the Routing Gateway transmission
processor. For each entry in the queue, the transmission processor locates the image, and
identifies the destination.
For Imaging destinations, the transmission processor is responsible for copying the image
to the destination. For DICOM destinations, the transmission processor passes the image
and destination information to the ‘Transmit DICOM Images to a DICOM SCP’ function
of the DICOM Gateway, and waits for the function to report the status of the transfer
back to the routing software.
After the image is copied, the appropriate entry in the transmission queue is updated with
the status of the image transfer. Transmission queue entries are retained for tracking and
troubleshooting purposes. Entries can be deleted as described on page
57 .
Remote Reading with VistARad
A properly-configured VistARad workstation can be used to display and interpret exams
routed from another site. Radiologists performing remote reading can use VistARad to
log into the site that sent the routed exams, and then use the contents of the RC (Remote
Cache) exam list column to determine which exams have been routed to them. For
additional information about working with routed exams, refer to page
59 .
Exporting DICOM Images
In general terms, any DICOM Storage SCP (Service Class Provider) can serve as a
DICOM destination. Apart from transmission logs, images routed to a DICOM
destination are not tracked by the Imaging system. Retention, management, and deletion
of routed images is the responsibility of the destination.
Deletion of Routed Images
For Imaging destinations, the amount of time routed images are retained is based on the
value of the
RETENTION PERIOD field in the NETWORK LOCATION File (#2005.2). When
connecting to a destination for the first time on a given day, the transmission processor
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