FDA-cleared profile

syngo.CT LVO Detection

Siemens Medical Solutions USA, Inc.

AI-assisted acute-care triage and notification of suspected large-vessel occlusion on contrast-enhanced head CTA to prioritize review; not diagnosis.

Evidence status: each field states its source quality, applicability, and review date. Research pending, information not established, and vendor documentation pending remain distinct outcomes.

Clinical details

What this tool is for

Start with the authorized purpose, then verify how it fits your service line and reading workflow.

Exact purpose
AI-assisted acute-care triage and notification of suspected large-vessel occlusion on contrast-enhanced head CTA to prioritize review; not diagnosis.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Intended users
Qualified clinicians including radiologists, neuroradiologists, and neurologists; the comparison table also lists clinical administrators
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Care setting and population
Acute-care stroke and LVO triage workflow
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Workflow role
Notification-only, parallel worklist-prioritization support with an external alert and no image highlighting; standard-of-care review remains required
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Required input
Contrast-enhanced CT angiography images of the head from patients aged 22 or older suspected of stroke-related circulation occlusion; Siemens and other CT vendors are listed, with exclusions for old infarcts or other brain-vascular disease, metal artifacts, and surgical signs.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Output and human action
A case-level notification of suspected LVO or processing finished, optionally sent to an external notification device; the output does not highlight any portion of the image and does not alter the original medical image.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Limitations
Intended for patients aged 22 or older and excludes old infarcts or other diseases affecting brain vasculature, metal artifacts such as coils, and surgical signs. The triage output is informational only, not diagnostic, and does not replace review of the original CTA. Standalone validation covered 602 retrospective cases from four U.S. sites.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08

Regulatory identity

FDA record and catalog context

The FDA listing establishes the regulatory identity. It does not by itself establish local workflow fit, pricing, security, or performance in your environment.

FDA submission
K243145
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Modality
CT/CTA
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Anatomy
Brain/head vasculature, specifically the ICA, M1, and M2 segments
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Clearance type
510(k)
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Decision date
2025-04-10
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
FDA status
FDA-cleared
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31

Implementation

Questions for IT, informatics, and operations

Use these fields to structure a vendor demo, security review, and implementation estimate.

Integration
Deployment compatibility is described with the syngo.via platform; DICOM is an applicable software standard and results can be sent to an external notification device. The FDA packet does not establish exact local RIS/PACS interface versions.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Deployment and data flow
On-premise
  • Public source
  • Exact FDA submission
  • Checked 2026-08-13

Deployment category preserved from the prior exact-submission review; hosting region, data flow, and current commercial configuration still require vendor confirmation.

Security and privacy
Vendor documentation pending
  • Vendor confirmation
  • Exact FDA submission
  • Checked 2026-09-08

Exact-release security controls, data retention, hosting boundaries, and scoped assurance documentation require vendor confirmation.

Training and support
Vendor documentation pending
  • Vendor confirmation
  • Exact FDA submission
  • Checked 2026-09-08

Current training prerequisites, competency checks, and support commitments for the exact configuration require vendor confirmation.

Monitoring and change control
Vendor documentation pending
  • Vendor confirmation
  • Exact FDA submission
  • Checked 2026-09-08

Current drift, quality, uptime, alert, escalation, and incident-response commitments for the exact configuration require vendor confirmation.

ACR exact-submission catalog context

ACR AI Central provides an exact-submission model card for syngo.CT LVO Detection; FDA labeling remains controlling for clinical use, limitations, and performance.

exact submission ยท checked 2026-09-08

Evidence

Performance evidence

Metrics are shown only when they are tied to a source, endpoint, population, and tested product version. Candidate literature without exact product and version linkage is not shown as product evidence.

Evidence summary
FDA packet: standalone testing used 602 retrospective CT datasets from 602 patients at four U.S. sites, including 307 positive cases with ICA, M1, or M2 occlusions. Two U.S.-board-certified neuroradiologists established ground truth with third-reader adjudication for disagreement. Observed sensitivity was 90.6% and specificity 88.8%; all cases processed in under 110 seconds with a median of 42 seconds.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-08
Reported sensitivity
90.6% (95% CI: 86.8%, 93.3%)
  • Public source
  • Exact FDA submission
  • Checked 2026-09-01

Model sensitivity reported by ACR AI Central. Review endpoint, threshold, study population, and tested version before comparison.

Reported specificity
88.8% (95% CI: 84.7%, 91.9%)
  • Public source
  • Exact FDA submission
  • Checked 2026-09-01

Model specificity reported by ACR AI Central. Review endpoint, threshold, study population, and tested version before comparison.

No contextualized exact-version metric has completed evidence review. Regulatory-document values, when available, are shown above with their limitations.

syngo.CT LVO Detection regulatory performance study summary

  • DesignStand-Alone Performance
  • PopulationAdult
  • Scopeexact submission
  • Tested versionExact product version not reported; regulatory study summarized for FDA submission K243145
  • Samplen=602
  • Sites4
  • IndependenceIndependence not established

K243145

ACR AI Central summarizes the regulatory study; consult the exact FDA materials before comparative use.

Costs and setup

Budget and ongoing governance

These are common procurement questions; unknown values remain visible until a source supports them.

Pricing and total cost
Vendor documentation pending
  • Vendor confirmation
  • Exact FDA submission
  • Checked 2026-09-08

No public price or quote for the exact K243145 configuration was established in this review.

Reimbursement and coding
Not established in reviewed sources
  • Reviewed sources checked
  • Exact FDA submission
  • Checked 2026-09-08

No exact-product payer policy, coding instruction, or payment determination was established; eligibility must be evaluated by payer, site of service, and use case.

Safety and lifecycle

Postmarket record

Recall and adverse-event records are shown only after product matching. Adverse-event reports do not establish incidence or causality.

Postmarket safety review
The exact-identifier FDA recall query returned no native recall record for K243145. This limited result does not establish absence of recalls or other safety information and does not cover later versions, family records, MAUDE reports, corrections, or field notices.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-08

Buyer worksheet

Open questions to take to the vendor

Open evaluation checklist

Research record

What has been checked

This audit distinguishes completed source review from fields that have not yet been researched.

Exact FDA record reviewedStatus
2026-09-08Last searched
24Fields reviewed
9Source classes checked
0Awaiting review PubMed leads
0Awaiting review trial leads
0Unreviewed FDA recall leads

Exact-submission ACR model-card fields were normalized under the current provenance rules; vendor and independent-study confirmation remain distinct. Exact FDA scope controls clinical claims. ACR provides bounded exact-submission catalog context. Candidate literature metadata remains a discovery queue until full-text identity, endpoint, population, and version review is completed. Automated exact-name discovery found 0 PubMed and 0 ClinicalTrials.gov candidate records. Candidates require human product and version matching; zero candidates is not evidence that no studies exist. Native FDA recall identifiers produced 0 postmarket candidate records; 0 have been reviewed (0 published, 0 rejected) and 0 remain unreviewed.

Candidate leads remain unpublished until a human confirms the exact product and tested version.

Source classes: fda ai list, fda decision summary, acr ai central product, fda device recall, literature index, trial registry, pubmed, clinical trials, openfda device recall

Sources & history

How this profile was documented

Open the ledger for source dates, scope, and research-record updates.

View source ledger and history

Source ledger

  1. FDA K243145: syngo.CT LVO Detection

    U.S. Food and Drug Administration - Published 2025-04-10 - Accessed 2026-09-08

    Scope: identity, clinicalUse, modality, anatomy, workflow, evidence, implementation

  2. Artificial Intelligence-Enabled Medical Devices

    U.S. Food and Drug Administration - Accessed 2026-08-31

    Scope: regulatoryIdentity, modalityContext

  3. syngo.CT LVO Detection model card (K243145)

    American College of Radiology - Published 2026-08-17 - Accessed 2026-09-01

    Scope: intendedUsers, careSetting, output, limitations, reportedSensitivity, reportedSpecificity, evidenceSummary, anatomy, evidenceStudies

  4. PubMed biomedical literature index

    U.S. National Library of Medicine - Accessed 2026-09-01

    Scope: evidenceDiscovery

  5. ClinicalTrials.gov study registry

    U.S. National Library of Medicine - Accessed 2026-09-01

    Scope: evidenceDiscovery, studyStatus

  6. openFDA Device Recall API

    U.S. Food and Drug Administration - Accessed 2026-09-02

    Scope: recallDiscovery, nativeSubmissionMatching

  7. openFDA exact recall query for K243145

    U.S. Food and Drug Administration - Accessed 2026-09-08

    Scope: postmarketSafety

Research history

  1. K243145 FDA decision

    Regulatory record

    510(k)

  2. Source-review record updated

    Research record

    fda record reviewed

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Modality
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Anatomy
Brain anterior circulation: internal carotid artery and M1 segment of the middle cerebral artery
Decision
2025-09-08
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Modality
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Anatomy
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Decision
2024-03-13