FDA-cleared profile

HALO

Nico.Lab B.V.

HALO is a notification only cloud-based image processing software application using artificial intelligence algorithms to analyze patient imaging data in parallel to the standard of care imaging interpretation. Its intended use is to identify suggestive imaging patterns of a pre-specified clinical condition and to directly notify an appropriate medical specialist. HALO's indication is to facilitate the evaluation of the brain vasculature on patients suspected of stroke by processing and analyzing CT angiograms of the brain acquired in an acute setting. After completion of the data analysis, HALO sends a notification if a pattern suggestive for a suspected intracranial Large Vessel Occlusion (LVO) of the anterior circulation (ICA,MI or M2) has been identified an image. The intended users of HALO are defined as medical specialists or a team of specialists that are involved in the diagnosis and care of stroke patients at emergency departments or other department where stroke patients are administered. They include physicians such as neurologists, radiologists, and/or other emergency department physicians. HALO's output should not be used for primary diagnosis or clinical decisions; the final diagnosis is always decided upon by the medical specialist. HALO is indicated for CT scanners from GE Healthcare and Philips.

Evidence status: each field shows source quality, applicability, and review date. Research pending, information not established in reviewed sources, and vendor documentation pending are distinct outcomes.

Clinical fit

What this tool is for

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

Exact purpose
HALO is a notification only cloud-based image processing software application using artificial intelligence algorithms to analyze patient imaging data in parallel to the standard of care imaging interpretation. Its intended use is to identify suggestive imaging patterns of a pre-specified clinical condition and to directly notify an appropriate medical specialist. HALO's indication is to facilitate the evaluation of the brain vasculature on patients suspected of stroke by processing and analyzing CT angiograms of the brain acquired in an acute setting. After completion of the data analysis, HALO sends a notification if a pattern suggestive for a suspected intracranial Large Vessel Occlusion (LVO) of the anterior circulation (ICA,MI or M2) has been identified an image. The intended users of HALO are defined as medical specialists or a team of specialists that are involved in the diagnosis and care of stroke patients at emergency departments or other department where stroke patients are administered. They include physicians such as neurologists, radiologists, and/or other emergency department physicians. HALO's output should not be used for primary diagnosis or clinical decisions; the final diagnosis is always decided upon by the medical specialist. HALO is indicated for CT scanners from GE Healthcare and Philips.
FDA source Exact FDA submission Checked 2026-09-08
Intended users
Neurologists, radiologists, and/or other emergency department physicians
Public source Exact FDA submission Checked 2026-09-01

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

Care setting and population
Research pending
Needs research Exact FDA submission Checked 2026-08-31

Confirm the intended care setting, patient population, and service line.

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
CT/CTA images or data involving Brain; 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
HALO sends a notification email to the specialist identifying the study of interest if a pattern suggestive of an intracranial Large Vessel Occlusion (LVO) of the anterior circulation (ICA, M1 or M2) has been identified. Additionally, the device provides the user with a link to a DICOM Web viewer allowing users to review the images remotely.
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
K211788
FDA source Exact FDA submission Checked 2026-08-31
Modality
CT/CTA
FDA source Exact FDA submission Checked 2026-09-08
Anatomy
Brain
FDA source Exact FDA submission Checked 2026-09-08
Clearance type
510(k)
FDA source Exact FDA submission Checked 2026-08-31
Decision date
2021-07-08
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 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
Cloud-based deployment is explicitly described in the exact-submission ACR model card; hosting region, data flow, and current commercial configuration require vendor confirmation.
Public source Exact FDA submission Checked 2026-09-01

Deployment mode explicitly reported in the exact-submission ACR model card; hosting region 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.

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.

Deployment model

Cloud-based deployment is explicitly described in the exact-submission ACR model card; hosting region, data flow, and current commercial configuration require vendor confirmation.

exact submission · checked 2026-09-01

Supported acquisition environment

Scanner manufacturers: All

exact submission · checked 2026-09-01

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

ACR exact-submission catalog context

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

exact submission · checked 2026-09-08

Evidence

Performance evidence

Metrics are shown only when they are tied to a source, endpoint, population, and tested product version.

Evidence summary
Study type: Stand-Alone Performance. Cases: 427. Reference standard: Interpretation by Reviewing Clinician. Reported sensitivity: 91.3% (95% CI: 86.6%, 94.8%). Reported specificity: 85.9% (95% CI: 80.6%, 90.2%). Reported accuracy: 97%
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
91.3% (95% CI: 86.6%, 94.8%)
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
85.9% (95% CI: 80.6%, 90.2%)
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.

HALO regulatory performance study summary

Stand-Alone Performance · Population described in the exact-submission ACR model card

exact submission · Tested version: Exact product version not reported; regulatory study summarized for FDA submission K211788 · n=427 · Independence not established

K211788

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

Economics and lifecycle

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 K211788 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 K211788. 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
20Unreviewed PubMed leads
10Unreviewed 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 and official vendor material provide bounded catalog or product-family context. Candidate literature metadata remains a discovery queue until full-text identity, endpoint, population, and version review is completed. Automated exact-name discovery found 20 PubMed and 10 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

Source ledger

Sources accessed through 2026-09-08.

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