FDA-cleared profile

qER-Quant

Qure.ai Technologies

Automatic labeling, visualization, and quantification of segmentable brain structures from non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and midline shift; single-timepoint volumes and longitudinal comparisons are provided when scans use the same scanner and protocol for the same person.

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

Product overview

Start with the essentials

Automatic labeling, visualization, and quantification of segmentable brain structures from non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and midline shift; single-timepoint volumes and longitudinal comparisons are provided when scans use the same scanner and protocol for the same person.

Overview status: Field-derived fact summary This section is assembled from the sourced field records below; it is not a source-reviewed editorial overview.

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
Automatic labeling, visualization, and quantification of segmentable brain structures from non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and midline shift; single-timepoint volumes and longitudinal comparisons are provided when scans use the same scanner and protocol for the same person.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

Clinical-use display mirrors the exact FDA-supported purpose reconciled from the decision-summary packet.

Intended users
Research pending
  • Needs research
  • Exact FDA submission
  • Checked 2026-08-31

Identify the intended clinical user and the human action expected after the output.

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
Automated labeling, segmentation/contouring, visualization, volume or shift quantification, and same-protocol longitudinal comparison through the user's radiology workflow.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-09
Required input
Non-contrast head CT in DICOM format; the plain axial series is processed.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

Exact FDA decision-summary packet reviewed on 2026-09-19; existing wording is supported without expansion.

Output and human action
PDF and DICOM outputs with volumes, preview images, labeled overlays, and longitudinal graphics showing changes in absolute volume and size when comparable scans are available.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

Exact FDA decision-summary packet reviewed on 2026-09-19; existing wording is supported without expansion.

Limitations
The indication is limited to non-contrast head CT and the three named target structures; longitudinal comparison requires the same scanner, acquisition protocol, and individual. The packet does not establish an intended-user label or a diagnostic-outcome claim.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

Exact FDA decision-summary packet reviewed on 2026-09-19; existing wording is supported without expansion.

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
K211222
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Modality
CT/CTA
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

The exact FDA indication and input description specify non-contrast head CT; CTA is not established by the packet. Controlled directory display reconciled from exact FDA wording: Non-contrast head CT. -> CT/CTA.

Anatomy
Brain; intracranial hyperdensities, lateral ventricles, and midline shift
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

Exact FDA decision-summary packet reviewed on 2026-09-19; existing wording is supported without expansion.

Clearance type
510(k)
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Decision date
2021-07-30
  • 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
CT scans are received from the user's PACS or another radiology software system/database and results are returned to the same destination or a user-specified radiology system; DICOM is used for input and output.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-09
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 2026-09-09

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.

ACR exact-submission catalog context

ACR AI Central provides an exact-submission model card for qER-Quant; FDA labeling remains controlling for clinical use, limitations, and performance.

exact submission · checked 2026-09-09

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
Standalone testing used expert-manually labeled head CTs and reported target-specific absolute errors and Dice scores: intracranial hyperdensity, 183 scans, mean absolute error 6.56 (7.33) mL and Dice 0.75 (95% CI 0.72-0.78); midline shift, 188 scans, mean absolute error 1.37 (1.23) mm with no Dice reported; left lateral ventricle, 210 scans, mean absolute error 2.09 (1.88) mL and Dice 0.79 (95% CI 0.78-0.81); right lateral ventricle, 210 scans, mean absolute error 2.18 (1.72) mL and Dice 0.75 (95% CI 0.73-0.77). Absolute error and Dice are measurement and segmentation endpoints, not sensitivity or specificity.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

Exact FDA decision-summary packet reviewed on 2026-09-19; existing wording is supported without expansion.

Reported sensitivity
Research pending
  • Needs research
  • Exact FDA submission
  • Checked 2026-08-31

This field has not been curated yet.

Reported specificity
Research pending
  • Needs research
  • Exact FDA submission
  • Checked 2026-08-31

This field has not been curated yet.

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

qER-Quant regulatory performance study summary

  • DesignStand-Alone Performance
  • PopulationAdult
  • Scopeexact submission
  • Tested version1.0
  • Samplen=375
  • IndependenceIndependence not established

K211222

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 2026-09-09

No public price or quote for the exact K211222 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 K211222. 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.

Exact FDA record reviewedStatus
2026-09-19Last searched
23Fields reviewed
10Source classes checked
1Awaiting 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 packet assessed on 2026-09-19. Directory-backed facts were reconciled only where purpose, modality, and anatomy were each directly established. Candidate literature and postmarket candidates remain in their existing review state. Automated exact-name discovery found 1 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, fda decision summary packet, 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 K211222: qER-Quant

    U.S. Food and Drug Administration - Published 2021-07-30 - Accessed 2026-09-19

    Scope: identity, clinicalUse, modality, anatomy, workflow, evidence, implementation, purpose, input, output, limitations, evidenceSummary

  2. Artificial Intelligence-Enabled Medical Devices

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

    Scope: regulatoryIdentity, modalityContext

  3. qER-Quant model card (K211222)

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

    Scope: careSetting, output, limitations, 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 K211222

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

    Scope: postmarketSafety

Research history

  1. K211222 FDA decision

    Regulatory record

    510(k)

  2. Source-review record updated

    Research record

    fda record reviewed

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Automatically label, visualize, and quantify segmentable brain structures on single-time-point non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and...

Modality
CT/CTA
Anatomy
Brain (intracranial hyperdensities, lateral ventricles, and midline shift)
Decision
2024-02-05