Governed cervical screening decision support.
Turn screening and referral information into provisional, guideline-aligned recommendations with structured data validation, clinician review and source-to-decision traceability built in.
Decision support under clinical validation. Recommendations are provisional and require review by an appropriately authorised clinician. Not a certified medical device.
Decision path · illustrative
Synthetic caseScreening information
Data sufficiency check
Guideline pathway
Provisional recommendation
Provisional — awaiting authorised clinician review
Clinician review
Data sufficiency
Checked before use
Ruleset
Versioned · traceable
The challenge
Small differences in context can change the right pathway.
Cervical screening and referral decisions depend on many interacting facts. CerviGrade helps structure that complexity — it does not replace clinician judgement.
- Current HPV and cytology results
- Previous screening history
- Treatment history
- Symptoms
- Follow-up timing
- Applicable guideline pathway
- Completeness of the data itself
Governed decision workflow
From screening information to an auditable decision.
One governed path for every case. The data source can change; the validation, decision engine, review gate and audit trail do not.
- Step 1
Clinical & screening information
Referral, laboratory and history data — uploaded in bulk or entered case by case.
- Step 2
Data sufficiency check
Missing, contradictory or insufficient facts are flagged before any recommendation is relied on.
- Step 3
Guideline pathway
A governed, versioned rules engine walks the structured pathway step by step.
- Step 4
Provisional recommendation
A traceable preliminary recommendation — never a silent final decision.
- Step 5
Clinician review
An authorised clinician examines the recommendation and the reasoning behind it.
Reviewer decision
- Accept
- Reject
- Override
- Defer
→ Recorded as an auditable decision, with the evidence behind it.
Data quality
A recommendation is only as reliable as the information behind it.
Before a recommendation is relied on, CerviGrade checks that the facts it needs are present, valid and consistent — and says plainly when they are not.
- Missing — a fact the pathway needs has not been supplied
- Contradictory — two sources or fields disagree
- Insufficient — the information present cannot safely resolve a pathway step
Facts checked include
- HPV result
- Cytology result
- Screening history
- Previous treatment
- Symptoms
- Cervix status (e.g. after hysterectomy)
- Immune status
Bulk uploads also run identifier, value and cross-field consistency checks, with suggested fixes before processing.
Guideline pathways
Structured pathways, derived from published New Zealand guidance.
CerviGrade implements structured decision pathways based on the published New Zealand HPV primary screening guidance and its pathway figures and tables. It is guideline-aligned decision support — not official Health New Zealand software, and not endorsed by Health New Zealand or the National Cervical Screening Programme.
HPV primary screening
Structured pathways derived from published New Zealand HPV primary screening guidance.
Referral pathways
When and how results lead to colposcopy referral, with the reasoning shown.
Follow-up & recall
Routine and early recall intervals resolved from the result and history in front of the engine.
Treatment history & test of cure
Previous treatment and test-of-cure context carried into the pathway, not left to memory.
Surveillance
Surveillance pathways for people whose history places them outside routine recall.
Decision traceability
See how the recommendation was reached.
Every recommendation carries its own reasoning — from the source record to the pathway step to the reviewer's action — so it can be checked, questioned and stood behind.
Same guideline. Same governed engine. Every decision traceable.
Where source data is missing or ambiguous, CerviGrade surfaces that rather than hiding it — the outcome can only be as consistent as the information supplied.
- Source information
- Record, file and row the facts came from, with mapping applied
- Governed facts
- The normalised facts the engine actually evaluated
- Decision path
- Each pathway step taken, in order
- Applicable pathway
- The guideline figure or table the path follows
- Recommendation
- Provisional output, with ruleset version
- Reviewer action
- Who reviewed, what they decided, and when
Human review
An authorised clinician stays in control.
CerviGrade provides provisional decision support. Final clinical action remains subject to review by an appropriately authorised clinician — human accountability is part of the product, not a caveat.
- Accept
- Reject
- Override
- Defer
- Reopen
Reviewer actions are recorded with the reviewer's role and reasoning. Demonstration identities are clearly separated from real clinical approval identities and cannot satisfy real approval gates.
Equity analytics
Make equity patterns visible.
Pathway outcomes can be disaggregated by ethnicity using New Zealand prioritised-ethnicity conventions, so differences in outcomes or follow-up are visible for equity review and service improvement — rather than buried in an average.
What it supports
- Visibility of pathway outcomes across population groups
- Evidence for equity review and service planning
- Questions worth asking — not conclusions drawn for you
CerviGrade supports visibility and analysis. It does not by itself eliminate inequity or guarantee equitable outcomes.
Governance & audit
Decision evidence that a quality team can rely on.
Review and decision evidence is kept alongside every case, so governance questions can be answered from the record rather than reconstructed from memory.
- Who reviewed the case
- What information was considered
- Which pathway and ruleset version applied
- The provisional recommendation
- The reviewer's final decision and any override reason
- Timestamps and an append-only audit trail
Integration
Integration-ready architecture. Not connected to production systems.
Today, data enters by file upload (CSV, Excel or JSON) or manual entry. Adapter patterns for HL7 v2, FHIR R4 and practice-management systems are defined server-side and mapped to one governed data contract.
Integration status
- File upload & manual entry
- In demonstration
- HL7 v2 adapter
- Defined · not connected
- FHIR R4 adapter
- Defined · not connected
- PMS adapter
- Defined · not connected
CerviGrade is not integrated with Health New Zealand systems. Any production connection would be activated only through governed approval with the organisation concerned.
CerviGrade is undergoing clinical evaluation and validation.
The current environment is intended for evaluation and demonstration. Recommendations are provisional and require appropriately authorised clinical review. The system is not presented as an autonomous clinical decision-maker.
- Demonstration data is synthetic — no real patient data
- Organisational installations run within the organisation's own environment
- Outputs are provisional
- No production clinical actions
- Not a certified medical device
- Guideline-aligned — not endorsed by Health NZ or the NCSP
Who it is for
Built for the teams accountable for screening decisions.
- Cervical screening programmes
- Referral grading teams
- Colposcopy services
- Clinical quality teams
- Screening coordinators
- Service planners
- Clinical governance teams
Explore the CerviGrade workflow.
Review the governed screening pathway, validation workflow and clinician-review experience using demonstration data.
Governed cervical screening decision support · A Translyx Clinical Technology