The term Vendor Neutral Archive (VNA) is used by many vendors of PACS software to identify the core of their product–the component that is used to reliably manage, store, retrieve, and query medical images and related information. Unfortunately, there is no “official” definition of the functionality of a VNA. As such, VNA offerings vary from vendor to vendor. The result is confusion among users due to the lack of a baseline that permits a direct comparison of VNA functionality and features.

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