Text with provenance
Most clinical chatbots return text. MyRadAssistant returns text with provenance — the evidence engine is the layer that makes the output verifiable.
Three-tier evidence model
Tier assignment is rules-based, mapping source type to tier deterministically. Expert consensus validation of the tier rules is pending.
Tier-aware retrieval
When multiple sources address a question, retrieval preferentially surfaces higher-tier evidence. You can see the tier of every cited source in the response.
Citations
Every claim in a response is anchored to a specific source passage. Click the citation in the response and you land on the exact text in the source document. We are progressively migrating from post-hoc similarity matching to native generation-time citations (Anthropic API) for more reliable anchoring.
On the roadmap
- Retraction Sentinel (Phase 2): automatic flagging of cited papers that have been retracted or expressed concern about.
- Disagreement detection (Phase 2): when sources disagree, surface the disagreement explicitly rather than hiding it inside a single synthesis.
- UMLS terminology grounding (Phase 2): standardise terminology in queries and retrieval.
- GraphRAG over RadLex (Phase 3): differential diagnosis support driven by RadLex's 30,000+ terms and 55,000+ disease-finding relationships.
Credentials and regulatory status
We publish only the certifications, registrations, and regulatory statuses we currently hold and that can be independently verified. Anything in progress, applied for, or planned is deliberately excluded from this page.
| Credential | Status | Verify |
|---|---|---|
| MHRA Class I medical device | Self-certified — Function 1 only (see scope below) | MHRA public device register |
| NHS DSPT | Standards Met — ODS U9L1B, 2025-26 v8, published 13 April 2026, valid to 30 June 2027 | NHS DSPT register |
| ICO registration | ZB621582, valid to 3 November 2026 | ICO public register |
| ODS code | U9L1B | NHS Organisation Data Service |
| RCR iRefer content licence | Full licence signed — RCR iRefer referral guidelines | Licence on file |
| Radiopaedia content licence | Full licence signed — Radiopaedia reference content | Licence on file |
MHRA scope statement
Our MHRA Class I self-certification covers Function 1 only — the grounded, citation-anchored question-answering tool — registered as a Class I medical device with the MHRA (manufacturer account 38102, GMDN 61087).
The report-critique tool is not a medical device: it is a professional medical-education tool and sits explicitly outside the scope of the device registration.
MyRadAssistant is a clinical decision-support reference tool, not a diagnostic device. It does not process patient-identifiable data and is not for use at the point of care on an individual patient.
What the evidence engine cannot do
The evidence engine is only as good as the corpus. New high-quality evidence published yesterday might not be in today's index until the next ingest cycle. Always treat a citation as the starting point for verification, not the end of inquiry.