Radiology AI Directory

FDA-cleared profile

Lunit INSIGHT CXR Triage

Lunit Inc.

Lunit INSIGHT CXR Triage is a radiological computer-assisted triage and notification software that analyzes adult chest X-ray images for the presence of pre-specified suspected critical findings (pleural effusion and/or pneumothorax). Lunit INSIGHT CXR Triage uses an artificial intelligence algorithm to analyze images for features suggestive of critical findings and provides case-level output available in the PACS/workstation for worklist prioritization or triage. As a passive notification for prioritization-only software tool within standard of care workflow, Lunit INSIGHT CXR Triage does not send a proactive alert directly to the appropriately trained medical specialists. Lunit INSIGHT CXR Triage is not intended to direct attention to specific portions of an image. Its results are not intended to be used on a stand-alone basis for clinical decision-making.

Acute triage and notification
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
Lunit INSIGHT CXR Triage is a radiological computer-assisted triage and notification software that analyzes adult chest X-ray images for the presence of pre-specified suspected critical findings (pleural effusion and/or pneumothorax). Lunit INSIGHT CXR Triage uses an artificial intelligence algorithm to analyze images for features suggestive of critical findings and provides case-level output available in the PACS/workstation for worklist prioritization or triage. As a passive notification for prioritization-only software tool within standard of care workflow, Lunit INSIGHT CXR Triage does not send a proactive alert directly to the appropriately trained medical specialists. Lunit INSIGHT CXR Triage is not intended to direct attention to specific portions of an image. Its results are not intended to be used on a stand-alone basis for clinical decision-making.
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31

Clinical-use display mirrors the best exact-submission purpose source because the reviewed FDA packet did not provide a more specific usable abstraction.

Intended users
Appropriately trained medical specialists who are qualified to interpret chest radiographs
  • Public source
  • Exact FDA submission
  • Checked 2026-09-01

Intended-user text reported in the exact-submission ACR model card.

Care setting and population
Adult
  • Public source
  • Exact FDA submission
  • Checked 2026-09-01

Patient-population text reported in the exact-submission ACR model card; institutional setting may still require vendor confirmation.

Workflow role
Triage or notification support
  • Public source
  • Exact FDA submission
  • Checked 2026-08-31

Conservative normalization of explicit wording in an exact-submission source.

Required input
X-ray/Radiography images or data involving Chest/Lung; consult the FDA labeling for exact protocol, series, and quality requirements.
  • Public source
  • Exact FDA submission
  • Checked 2026-08-31

Conservative normalization of explicit wording in an exact-submission source.

Output and human action
The AI model provides a case-level output (flag or blank) available in the PACS/workstation for worklist prioritization or triage. Images with suspected pleural effusion and/or pneumothorax are flagged in PACS/workstation. No markup is placed on the original image. A secondary capture of the finding is provided. An on-device technologist notification is generated 15 minutes after interpretation indicating which cases were prioritized.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-01

Clinical output reported in the exact-submission ACR model card.

Limitations
Scanner manufacturers: All
  • Public source
  • Exact FDA submission
  • Checked 2026-09-01

Limitations and supported-acquisition details reported in the exact-submission ACR model card.

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
K211733
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Modality
X-ray/Radiography
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Anatomy
Chest/Lung
  • Public source
  • Exact FDA submission
  • Checked 2026-09-01

Anatomy normalized from explicit exact-submission ACR model-card wording.

Clearance type
510(k)
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Decision date
2021-11-10
  • 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
The exact-submission ACR model card explicitly references DICOM and PACS in the described input, output, or workflow; exact interfaces, versions, and local compatibility require confirmation.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-01

Interoperability terms explicitly reported in the exact-submission ACR model card; interface versions and local compatibility still require confirmation.

Deployment and data flow
Hybrid
  • 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 2026-09-09

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 2026-09-09

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 2026-09-09

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

Input or output interoperability

DICOM is explicitly referenced in the described input, output, or workflow.

exact submission · checked 2026-09-01

The model card does not establish every supported DICOM object, transfer method, or local interface.

Source

Result destination

PACS and workstation are explicitly referenced as a result destination.

exact submission · checked 2026-09-01

Confirm supported products, versions, routing behavior, and display requirements during local evaluation.

Source

Supported acquisition environment

Scanner manufacturers: All

exact submission · checked 2026-09-01

Confirm currently supported software versions, protocols, and site-specific acquisition configurations.

Source

ACR exact-submission catalog context

ACR AI Central provides an exact-submission model card for Lunit INSIGHT CXR Triage; FDA labeling remains controlling for clinical use, limitations, and performance.

exact submission · checked 2026-09-09
Source

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
Study type: Stand-Alone Performance. Cases: 954. Sites: 3. Reference standard: Other. Reported sensitivity: 88.92% (95% CI: 85.60%, 92.24%). Reported specificity: 90.51% (95% CI: 88.18%, 92.83%). Reported accuracy: 96.30% (95% CI: [0.9521, 0.9739])
  • Public source
  • Exact FDA submission
  • Checked 2026-09-01

Structured study metadata from the exact-submission ACR model card; this is not an independent evidence synthesis.

Reported sensitivity
88.92% (95% CI: 85.60%, 92.24%)
  • 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
90.51% (95% CI: 88.18%, 92.83%)
  • 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.

Lunit INSIGHT CXR Triage- Pneumothorax regulatory performance study summary

  • DesignStand-Alone Performance
  • PopulationAdult
  • Scopeexact submission
  • Tested versionExact product version not reported; regulatory study summarized for FDA submission K211733
  • Samplen=954
  • Sites3
  • IndependenceIndependence not established

K211733

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

Source

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 2026-09-09

No public price or quote for the exact K211733 configuration was established in this review.

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

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 K211733. 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 2026-09-09

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.

Automated sources checkedStatus
2026-09-09Last searched
25Fields 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 and recall packets were prepared and identity matched, but no new clinical or performance claim was promoted in the conservative fallback. Existing exact-submission facts retain their original source status and applicability; candidate literature remains quarantined. 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 K211733: Lunit INSIGHT CXR Triage

    U.S. Food and Drug Administration - Published 2021-11-10 - Accessed 2026-09-09

    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. Lunit INSIGHT CXR Triage- Pneumothorax model card (K211733)

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

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

  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 K211733

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

    Scope: postmarketSafety

Research history

  1. K211733 FDA decision

    Regulatory record

    510(k)

  2. Source-review record updated

    Research record

    automated sources checked

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