Comprehensive Checklist for Selecting a Vendor Neutral Archive (VNA)
Comprehensive Checklist for Selecting a Vendor-Neutral Archive (VNA)
A Vendor-Neutral Archive (VNA) is at the heart of a modern healthcare imaging ecosystem, enabling centralized storage, management, and sharing of imaging data across the enterprise. VNAs can store and display various file formats, including DICOM and non-DICOM content, and retrieve data in its native format. VNAs have evolved to address the limitations of traditional departmental Picture Archiving and Communication System (PACS), which often resulted in vendor lock-ins, data silos, and integration challenges.
For organizations evaluating a VNA solution, choosing one that aligns with operational needs, promotes interoperability, and ensures scalability is a must. Below is a detailed checklist to guide healthcare organizations in selecting a VNA tailored to their requirements.
1. Core Functionalities of an Advanced VNA
Ensure your VNA provides these essential capabilities to optimize operations and enhance patient care:
- PACS Aggregation and Federation
Aggregate query results from multiple PACS, enabling seamless access and management of images across disparate systems. - Dynamic DICOM Tag Morphing:
Enable real-time DICOM data mapping and metadata translation for inbound and outbound data exchange with a “self-learning” library for conformance. - Pre-fetching and Auto-routing
Automate the retrieval of prior studies via HL7 or DICOM Modality Worklist (DMWL) triggers and ensure parallel delivery of current and historical data. - Support for DICOM and Non-DICOM Content:
Allow ingestion, archiving, and storage of diverse imaging formats, including visible-light images, with seamless integration into XDS registries for interoperability. - Support DicomWEb and FHIR functionality
- Maintaining statistics for every object that passes through the VNA
These features enable the integration of imaging data from various sources, facilitating real-time data exchange and comprehensive access to diverse imaging formats.
2. Scalable and Resilient Architecture
A robust architecture ensures high availability, adaptability, and resilience:
- Multi-site Deployment
Support distributed models with dynamic synchronization to handle low-bandwidth environments and ensure uninterrupted access during outages. - High Availability and Scalability
Leverage N+1 architecture for load balancing and scalability to accommodate growing data volumes and evolving clinical needs. - Independence from Proprietary Infrastructure:
Ensure compatibility with hybrid, cloud, and on-premises models while remaining hardware agnostic to avoid vendor lock-in. - Multi-tenancy Support
Allows separate management of institutional data through metadata and storage, catering to diverse organizational needs.
By supporting multi-site deployment and ensuring independence from proprietary infrastructure, you can achieve uninterrupted access to imaging data while avoiding vendor lock-in.
3. Interoperability and Data Migration
Facilitate seamless data exchange and future-proof migrations with these features:
- IHE Integration Profiles ensure conformance to XDS-I, XCA, and XUA profiles for enterprise-wide interoperability.
- On-demand data Migration supports federated access to legacy archives and automates patient jacket migrations for streamlined transitions.
- Image Object Change Management (IOCM) synchronizes changes across PACS and the VNA to ensure accurate metadata updates and maintain data integrity.
- EHR Integration provides web-based services and FHIR APIs for direct integration with Electronic Health Record (EHR) systems.
- API access for easier integration and control.
Interoperability is vital for effective data exchange and future-proof migrations within a VNA.
4. Usability and Operational Efficiency
Choose a VNA with intuitive tools to simplify management and improve productivity:
- Web-based User Interfaces deliver dashboards with configuration, audit, and tracing capabilities for streamlined diagnostics and system monitoring.
- Workflow Automation uses web services to facilitate metadata transformation and study movement across systems.
- Performance Analytics integrates with analytics platforms for real-time insights into traffic flow, system performance, and resource utilization.
Don’t underestimate the importance of usability for a VNA, with intuitive web-based interfaces and workflow automation tools enhancing management capabilities. These features simplify system monitoring and improve productivity by automating routine tasks and providing real-time performance analytics.
5. Advanced Security and Compliance
Protect patient data and maintain compliance with evolving healthcare standards:
- Data Integrity Management implements journalized metadata updates and disaster recovery mechanisms to ensure data consistency.
- Image Exchange enables secure sharing of imaging data with affiliated and unaffiliated organizations while adhering to regulatory standards.
- Patient Identity Cross-referencing integrates PIX and MPI services to support identity management across Health Information Exchanges (HIEs).
Implementing data integrity management and secure image exchange protocols helps maintain confidentiality while enabling efficient identity management through patient identity cross-referencing services.
Why Choose a VNA from Dicom Systems?
Dicom Systems Unifier Vendor Neutral Archive (VNA) provides relevant imaging storage and retrieval services on-premise, in the Cloud, or hybrid and has customers in hospitals, IDNs, Radiology Groups, and DOD. Unifier VNA is agnostic and can be deployed with any Cloud provider, public or private.
Unifier VNA Deployment Methods:
- On-premise
- Hybrid
- Cloud (Public or Private). In addition to our Cloud Partners, we are also available on AWS, Google Cloud, and Azure.
Dicom Systems Unifier VNA Benefits:
- All DICOMweb / RESTful APIs universal viewers are supported, as the system is vendor-agnostic.
- Continuous security improvements without disrupting file storage or access, which helps to maintain a high level of security for patient data.
- Primary VNA information is kept safe and secure from disasters, such as power outages, natural disasters, or cyberattacks, with the optional Disaster Recovery (DR) feature.
- 100% web-based solution. It provides access through any computer or mobile device, and there is internet access anywhere, 24/7/365.
- Easy HIPAA-compliant logging and monitoring of all DICOM transactions in a user-friendly format.
- Full virtualization support and integration with major cloud solution providers such as AWS, Google Cloud, Azure, and Oracle.
- Supports hot, cold, and warm cloud storage for clinical and legal workflows.
- Supports standard archive functions, including Store SCP, Query/Retrieve SCP, Storage Commitment SCP, and Verification SCP/SCU. Native API for DICOMWEB and FHIR.
- Configurable transfer syntax allows imaging data to be converted and stored in any transfer syntax. JPEG2000 compression and JPEG-LS compression are supported.
- Statistics, reporting, and monitoring features available.
- Rules-based DICOM tag pre/post filtering, morphing, and routing tool that supports DICOM, HL7, FHIR, and DICOMweb.
- Adapts and scales as protocols change or patient data fluctuates, providing a continuous level of performance for storage and retrieval capabilities during peak usage.
Dicom Systems Unifier Vendor Neutral Archive (VNA)
Learn more about our VNA projects:
Dicom Systems Awarded DoD Dental Records Archiving Contract.
Want to learn more about VNA with the Dicom Systems Unifier platform? Meet with one of our enterprise imaging workflow experts.