VNA How To’s: Installing and Connecting to a VNA

Once a backup strategy and infrastructure are in place, a VNA is ready to be installed. Due to certain requirements that their systems may have to meet, not every PACS vendor is ready to connect to a VNA. Some of those requirements may include:

  • The PACS archive needs to be able to hand-off the responsibility for storage to the VNA. This requires that a storage commitment request be initiated. Unfortunately most PACS only implement SCP, assuming that their archive will be the final and long-term storage provider.
  • If there are any changes in patient demographics, the study information has to be exchanged between the PACS and the VNA.
  • A PACS typically has a workflow manager that keeps track of the study status, like whether it is read, completed or unread. Pre-fetched studies from the VNA have to be identified as completed or read, or they could end up on the unread work list.
  • Image deletions have to be coordinated between the PACS and VNA and there should be an aging process for images after a configurable amount of time.

For more information about developing a Vendor Neutral Architecture, the VNA Institute of Technology, or to enroll for CPHIMS (CE) Continuing Education Hours, visit information about TeraMedica, visit:


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: