Executive Summary
The NHS Image Exchange Portal (IEP), operated by Sectra, has long served as the national standard for medical imaging transfer across UK healthcare organisations. While it enables vital cross-Trust image sharing, it remains constrained by outdated architecture, limited accessibility, and poor alignment with modern NHS priorities.
IEP is:
- Dependent on manual workflows for report ingestion and consent
- Closed to FHIR, AI, or cloud-native integration
- Expensive and non-extensible, especially for private or research use
- Unsuitable for Imaging Network consolidation
As NHS England transitions toward cloud-first policies, AI augmentation, and open standards, it is imperative to modernise how imaging is accessed, exchanged, and governed.
Darwinist DICOM Exchange is the solution: a modular, cloud-native imaging exchange platform designed to supersede the limitations of the IEP.
Built with:
- Azure DICOM and FHIR Services
- Laurel Bridge Compass and Navigator
- MedDream zero-footprint viewer
- Python Flask for orchestration and consent UI
It offers a secure, scalable, and open alternative to IEP—enabling federated image sharing, AI-ready infrastructure, and workflow automation tailored to the evolving needs of NHS Trusts, Imaging Networks, and diagnostic innovators.
1. Product Overview
Darwinist DICOM Exchange is a federated, standards-based radiology platform enabling secure image exchange, metadata integration, and browser-based viewing across institutions. It supports both clinical and research use cases and is designed to modernise diagnostic workflows while maintaining compliance, scalability, and cost-efficiency.
2. Technology Stack
| Component | Functionality |
|---|---|
| Azure DICOM Service | Secure image archive and API-based DICOMweb access |
| Azure FHIR Service | Imaging metadata mapped to FHIR for EPR integration and governance |
| Laurel Bridge Compass | Rules-based DICOM/HL7 routing engine |
| Laurel Bridge Navigator | Automated priors fetching and workflow execution |
| MedDream Viewer | CE-certified HTML5 diagnostic viewer |
| Python Flask + Bootstrap | UI for workflow control, consent dashboards, and logs |
3. Key Features
✅ Modern Image Exchange
- DICOMweb-based routing via HTTPS, no VPN or node installs
- Secure access beyond HSCN—supports remote reading and cloud workflows
- Cross-Trust federation and metadata alignment
✅ AI-Ready and FHIR-Native
- Study metadata streamed into FHIR resources
- Enables downstream integration with EPR, AI, registries, and analytics
- Supports real-time triggers for AI and reporting engines
✅ Zero-Footprint Viewing
- MedDream HTML5 viewer supports full diagnostic capabilities, MPR, overlays, annotations
- Seamless access from NHS desktops, mobile, and home environments
- Compatible with structured reporting and collaborative MDT use
✅ Automated Routing and Priors Retrieval
- HL7/MWL/REST triggers initiate prior fetching and DICOM routing
- Rule-based filtering by modality, date, or clinical need
- Retry logic and failure audit trails included
✅ Consent and Compliance UI
- Flask UI allows:
- Patient-specific consent flagging
- Audit logs of study access
- Role-based views and data request workflows
- FHIR-linked consent tracking possible via Azure Health APIs
4. NHS Use Case Alignment
| Scenario | Capability |
|---|---|
| Cross-Site Image Sharing | Federated DICOM access via Azure |
| AI Deployment & Validation | Routing to/from AI tools with built-in de-ID |
| Community Diagnostics | Browser-based access with no local infrastructure |
| Virtual Clinics & MDTs | Real-time collaboration in the MedDream viewer |
| Clinical Trials & Research | Consent-governed data ingestion, export, anonymisation |
| Subject Access Requests | Secure, auditable study release workflow |
5. Security & Compliance
- TLS encryption, OAuth2, Azure Private Endpoints
- Compliant with:
- NHS Data Security and Protection Toolkit
- ISO/IEC 27001
- GDPR & HIPAA
- RBAC and Active Directory integration
- Full audit trail for DICOM, FHIR, and user access
6. Competitive Advantages vs. NHS IEP
| Feature | Darwinist DICOM Exchange | NHS IEP |
|---|---|---|
| Network Access | Secure internet access | HSCN only |
| Standards | DICOMweb + HL7 + FHIR | DICOM + HL7 |
| Viewer | CE-certified HTML5 viewer | Limited web viewer |
| AI Integration | Native routing + metadata | Not supported |
| Consent UI | Built-in tracking + audit | Manual or external |
| Speed to Deploy | Cloud setup in hours | Node installs in weeks |
| Extensibility | Python/REST APIs and plugins | Closed architecture |
| Pricing | SaaS + Azure consumption | Tiered fixed fees |
7. Deployment Options
- Azure-native
8. Roadmap
- NHS-native consent registry API integration
- FHIR Subscriptions for live alerting
- LLM compatibility for auto-reporting and natural language queries
- Optional patient portal for imaging access
9. Conclusion
Darwinist DICOM Exchange provides a next-generation alternative to the IEP—offering cloud-native access, AI readiness, FHIR compatibility, and browser-based diagnostics in one unified platform. It empowers NHS Trusts to modernise imaging workflows, reduce reliance on proprietary systems, and embrace secure, scalable radiology infrastructure aligned with national strategy.