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LibraryFamily 1 · Diagnostic Imaging & Pathology

AI second reader for breast cancer screening

ValidatedActive deploymentEmerging evidence

Formally validated with a published Assurance Pack.

Acts as an independent second reader of screening mammograms to support the double-reading workflow and reduce reader workload without lowering cancer detection.

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Clinical context
Clinical problem
Detect a condition
Point of care
Diagnosis
Nature of AI output
A classification
Clinical specialty
Radiology
Care setting
Hospital — outpatient
Patient population
Women aged 50–70 attending routine NHS Breast Screening Programme mammography.
Intended use
Acts as an independent second reader of screening mammograms to support the double-reading workflow and reduce reader workload without lowering cancer detection.
Technology
AI technique
Deep learning, Computer vision
Input data
Medical imaging
Output type
Classification
Autonomy level
Informs a human (advisory)
Model provenance
Vendor proprietary
Model version
Mia v2.1
Built on a general-purpose model
No
Deployment
Status
Active deployment
Country
United Kingdom
Deployment date
1 March 2024
Sites
3
Regulatory & governance
EU AI Act risk tier
High-risk
High-risk basis
Annex I — medical device
Medical device
Yes
EU MDR class
Class IIb
CE marking
CE marked
FDA status
Not submitted
ISO 14971 risk class
Medium
GDPR processing basis
Public interest
GDPR DPIA
Completed
Data identifiability
Pseudonymised
Explainability method
Post-hoc
Human oversight model
Every flagged case is reviewed by a qualified radiologist before recall; AI never recalls a patient autonomously.
NICE evidence standards
ESF tier
Tier C — treat / diagnose / calculate risk
Evidence category
Category 3
Performance summary
Headline metric
Sensitivity
Value
0.91
Subgroup performance assessed
Yes
Known bias signals
Slightly lower sensitivity reported for dense breast tissue (BI-RADS density C/D); monitored as part of the validation review.

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Assurance Pack

Validation artefact produced by the AIH Lab review panel.

Criteria version
2026.1
Result
PASSED
Issued
1 February 2024
Panel chair

Evidence records

Studies and evaluations attached to this use case.

  • Retrospective validation

    Specificity: 0.89

    Population: NHS screening cohort, 120k mammograms

  • Retrospective validation

    Sensitivity: 0.91

    Population: NHS screening cohort, 120k mammograms

Contributors

Deploying organisation
[demo] Oxford University Hospitals NHS FT · Hospital / health system · United Kingdom
AI vendor
[demo] Kheiron Medical Technologies · United Kingdom
Product name
Mia