vnaPlus is Leafsprout's Vendor Neutral Archive of clinical content. It provides long-term storage for a wide range of imaging and non-imaging objects. As a system that was designed for the cloud from the get-go, the VNA offers uncompromised adherence to industry standards, scalability and performance, as well as security.


  • IHE Image Manager/Archive functionality enhanced with the web-based DICOM interfaces, including: STOW-RS, WADO-URI, WADO-RS, WADO-WS, QIDO-RS.
  • Independence from the database engine, as all data is archived in a standard format with a standard interface - no proprietary encodings used.
  • Multi-tenant architecture for provisioning many independent organizations in a single logical instance/server farm.
  • Data Lifecycle Management configurable for each tenant to support information retention policies that are aligned with the jurisdictional requirements and business needs of each tenant.
  • Support for Image Object Change Management (IOCM) IHE Profile to allow external systems to explicitly adjust the content of imaging studies stored in the VNA, e.g., to hide or delete instances due to incorrect modality worklist selection, quality reasons, patient safety reasons, or data retention expiry.
  • Management and storage of workflow-related and administrative information (orders, reports, patient feeds, etc.) independently for each tenant. This includes a workflow manager that keeps track of open orders and their state transitions.
  • Coordination of multiple patient IDs via integration with a Master Patient Index system.
  • Normalization of foreign patient IDs, accession numbers, terminology (e.g., procedure codes, body parts) to the environment of a given tenant.
  • Flexible access authorization policies and ATNA-compliant audit trails for HIPAA compliance.
  • Built-in XDS Document Repository for handling a wide range of content types [optional].
  • Built-in XDS Document Source and Imaging Document Source for registering content in XDS systems and serving content to XDS clients [optional].
  • Discrete Data Archiving - ability to store and manage structured clinical observations over time, e.g., allergy lists, lab results, vital signs, medication lists [optional].
  • Support for BYOS (Bring Your Own Storage).
  • Administration via a web-based client.

Technical details:

  • Supports VMware and Hyper-V virtualization environments.
  • Designed for deployments in server farms.