Demo / Research / Not for Clinical UseDemo modeContact NexaRad

ModalityCT chest

Series2 of 4

Body partChest

SupportResearch supported

Clinical boundary

The browser never becomes the clinical boundary.

01BrowserNo direct PHI store

02API gatewayPolicy entry

03ServicesModel and verifier control

04StorageDICOM and artifacts

Auth boundaryHTTP-only sessions, org membership, RBAC, active tenant context.

Data boundaryBackend-owned DICOM artifacts, Orthanc adapter, no browser storage access.

AI boundaryProvider adapters run behind explicit support posture and site policy.

Report boundaryStructured findings only, verifier-gated export, visible non-clinical watermark.

Evidence ledger / Demo modeExport locked

Scan viewer

SYN-CT / AX / IM 48-96 / DE-IDENTIFIED

Report draft

Small right upper lobe pulmonary nodule candidate, under clinician review.

Evidence link: S2 / SL48 -> finding_01

Verifier gate

Evidence present on all findingsPass

Operating mode allows exportPending

Clinician review completePending

Unsupported claims absentPass

Audit trail

finding_01 reviewed

verifier_check failed

export_blocked recorded

NexaRadAI-Powered Radiology

Evidence-linked radiology workflow.

Backend-owned DICOM intake, modality routing, model-supported finding candidates, clinician review authority, evidence-linked report sentences, verifier-gated export, and audit events. Designed for controlled review workflows — not autonomous diagnosis.

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02 — Context

The study is read before any model runs.

Modality, body part, series, and support status attach as deterministic DICOM context before any model runs.

03 — Slice

Scroll cuts to the evidence.

Ninety-six axial slices. One candidate finding on slice 48. No claim without an imaging address in the study.

04 — Ledger

The finding becomes structured.

Source series, slice, model version, confidence, and review state — written to the evidence ledger as structured records.

05 — Report

The sentence links back.

Each draft sentence links back to its finding. The report stays locked until clinician review completes.

06 — Verify

The verifier gates export.

Evidence present, mode cleared, review complete, claims supported — until then export stays locked and watermarked.

Scroll — slice the study

The camera lands inside the product shell.

The story resolves into a real command surface: worklist context, scan evidence, draft report, verifier state, and audit trail held inside one governed product shell.

Evidence ledger · Demo mode

Export locked

Worklist

Patient	Study	Status	Report
SYN-001	CT · CT chest with contrast	Ready	Draft
SYN-002	US · Abdominal ultrasound	Uploaded	Blocked
SYN-001	CT · CT chest with contrast	Ready	Draft
SYN-002	US · Abdominal ultrasound	Uploaded	Blocked

A report sentence becomes a chain of custody.

The landing film follows one claim through imaging source, structured finding, report draft, verifier result, and audit event. The chain is visible because trust cannot be implied.

DICOM series / slice / frame

Imaging source

Series 2 · Slice 48 · IM 48/96

Structured finding

Ledger row

finding_01 · right upper lobe nodule candidate

Report sentence

Draft linked

Small right upper lobe pulmonary nodule candidate, under clinician review.

Verifier check

Verifier controlled

Evidence present · Review pending · Export locked

Audit event

Traceable

verifier_check · export_blocked · study_001

Governed states before a report can leave the system.

The product shell surfaces each transition. Frontend clients never bypass backend policy for storage, models, or export.

DICOM intake

Raw artifact stored

Backend import to Orthanc

PHI stays server side

Classifier

Support status assigned

Deterministic local adapter

Research mode is explicit

Finding ledger

Evidence reference required

Series, slice, model, review state

No orphan claims

Report composer

Structured findings only

Sentence references preserved

Draft locked by verifier

Export gate

Watermark and audit event

Review, mode, evidence, support

Blocked until passing

The corridor continues after the film.

The same governed evidence object travels through operational states that matter to radiologists, imaging centers, health-system IT, and investors evaluating platform depth.

Intake

Backend-owned DICOM session ingests study files through server-side Orthanc scope.

Server owned

Classify

Modality and body-region routing assigns support status without diagnostic overclaim.

Routed

Analyze

Model-supported finding candidates attach series, slice, and model version references.

Evidence linked

Review

Clinician accepts, edits, or rejects each finding — review authority stays human.

Human authority

Compose

Report sentences are composed only from structured findings with preserved evidence links.

Sentence scoped

Verify

Unsupported or export-blocked states stop unsafe output before any file leaves the system.

Verifier gated

Export

Gated by verifier status, operating mode, review completion, and support posture.

Locked output

Audit

Each action — view, edit, verify, block, export — leaves a traceable audit event.

Traceable

No finding without evidence.

Every model finding carries a series, slice, and region — or it is labeled unlocalized. Evidence is never fabricated to look complete.

No report without review.

Drafts compose only from structured findings. A clinician accepts, edits, or rejects each one before anything is finalized.

No export without verification.

A deterministic verifier checks every sentence against evidence, operating mode, and review state. Failures block export — not warn.

The browser never becomes the clinical boundary.

The public page shows the product posture without implying clinical clearance: backend-owned DICOM intake, tenant scope, model support gates, verifier policy, and audit-backed export control.

Server-owned imaging architecture

Boundary enforced

Frontend

API Gateway

Backend Services

Storage

Server import

Backend-owned DICOM intake

Browser clients never talk directly to Orthanc, object storage, or imaging archives. Upload sessions and import scope stay server-side.

Tenant scoped

PHI and security boundary

HTTP-only sessions, org memberships, and RBAC hydrate active tenant context. PHI handling follows configured site policy — not implied clearance.

Module gated

Model support status

Modules run behind provider adapters with explicit support posture. Unsupported studies remain viewable without unlocking diagnostic claims.

Export gated

Audit and export governance

Verifier checks evidence, mode, review state, and support before export. Blocked exports and watermarking remain visible in demo posture.

Auth boundaryHTTP-only sessions, org memberships, RBAC, active membership hydration

Data boundaryBackend-owned DICOM, MinIO/S3 artifacts, Orthanc adapter, no browser storage access

AI boundaryDeterministic local adapter first, Bedrock/SageMaker adapters disabled by default

Report boundaryStructured findings only, verifier-gated export, visible non-clinical watermark

Platform breadth is broad. Clinical claims are module-gated.

Platform intake can be broad while clinical claims stay narrow, validated, and policy-gated. This section is the page contract with clinicians, buyers, and regulators.

Module support board

Color is secondary. The text state is the contract: what can be viewed, what can be drafted, and what remains locked.

CT chestthoracic-triage v0.3.2Supported

Research workflow support with evidence-linked review and verifier gates.

X-ray chestcxr-triage v0.2.1Validation 64%

Validation cohort in progress; report export stays restricted by site policy.

MR brainviewer-onlyPlanned

DICOM intake and viewing available; diagnostic assistance planned after validation.

US abdomenmetadata-onlyNot supported

Visible as a study record without model claims, composition, or export unlock.

Demo / Research / Not for Clinical Use · Clinical use requires validation, governance, and clearance

Final frame

See the governed workflow from first slice to final gate.

Walk through backend-owned DICOM intake, evidence-linked findings, clinician review, verifier-gated export, and audit trails in a non-clinical product demo.

Demo modeNot for clinical use

finding_01 settled

Report draft linked · verifier pending · export locked

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Demo / Research / Not for Clinical Use · No autonomous diagnosis · No clinical clearance implied

Evidence-linked radiology workflow.

The study is read before any model runs.

Scroll cuts to the evidence.

The finding becomes structured.

The sentence links back.

The verifier gates export.

The camera lands inside the product shell.

Right upper lobe nodule candidate

No pleural effusion detected

A report sentence becomes a chain of custody.

DICOM series / slice / frame

Structured finding

Report sentence

Verifier check

Audit event

Governed states before a report can leave the system.

DICOM intake

Classifier

Finding ledger

Report composer

Export gate

The corridor continues after the film.

Intake

Classify

Analyze

Review

Compose

Verify

Export

Audit

No finding without evidence.

No report without review.

No export without verification.

The browser never becomes the clinical boundary.

Server-owned imaging architecture

Frontend

API Gateway

Backend Services

Storage

Backend-owned DICOM intake

PHI and security boundary

Model support status

Audit and export governance

Platform breadth is broad. Clinical claims are module-gated.

Module support board

See the governed workflow from first slice to final gate.