Authorized purpose: Automatically label, visualize, and quantify segmentable brain structures on single-time-point non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and midline shift; output must be reviewed with the original images by a physician.
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
Authorized purpose: Automatically label, visualize, and quantify segmentable brain structures on single-time-point non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and midline shift; output must be reviewed with the original images by a physician.
Overview status: Source-reviewed overview
What does this software do?Authorized purpose: Automatically label, visualize, and quantify segmentable brain structures on single-time-point non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and midline shift; output must be reviewed with the original images by a physician.
Which images or clinical context are in scope?Modality: CT/CTA Anatomy or clinical context: Brain (intracranial hyperdensities, lateral ventricles, and midline shift) Input: DICOM non-contrast head CT series acquired at a single time point from a compliant imaging device or modality.
Who uses it?Intended users: Physicians.
What does the software produce?Output: DICOM summary and segmentation series: a summary slice with overlays and measurements, plus RGB segmentation overlays on the input series for intracranial hyperdensities and lateral ventricles with midline-shift information and volume measurements, returned with the original NCCT series to a preconfigured PACS.
What is its most important limitation?Key limitation: Single-time-point NCCT only and limited to the stated intracranial hyperdensity, lateral-ventricle, and midline-shift structures. The output should be reviewed with the original images by a physician; overlay colors are visual differentiators only and have no independent meaning. The reviewed FDA text does not state a sample size or establish diagnostic sensitivity, specificity, or a clinical outcome claim.
Clinical takeaway
Clinical role: Automatically label, visualize, and quantify segmentable brain structures on single-time-point non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and midline shift; output must be reviewed with the original images by a physician.
Evidence takeaway
Evidence from the reviewed source record: FDA K232363 reports clinical testing against ground truth established by trained radiologists. Upper 95% CI bounds for mean absolute error were below 7.5 mL for total intracranial hyperdensity volume, 3 mL for each lateral-ventricle volume, and 2 mm for midline-shift distance. Dice lower confidence bounds exceeded 70% for hyperdensities and both lateral ventricles, with stratification by site, demographics, slice thickness, scanner, protocol, and estimated quantity; the reviewed FDA text does not state the study sample size.
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
Automatically label, visualize, and quantify segmentable brain structures on single-time-point non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and midline shift; output must be reviewed with the original images by a physician.
Hospital radiology and PACS workflow; the FDA summary describes return to a hospital server or customer DICOM node but the indication does not restrict facility type.
DICOM summary and segmentation series: a summary slice with overlays and measurements, plus RGB segmentation overlays on the input series for intracranial hyperdensities and lateral ventricles with midline-shift information and volume measurements, returned with the original NCCT series to a preconfigured PACS.
Single-time-point NCCT only and limited to the stated intracranial hyperdensity, lateral-ventricle, and midline-shift structures. The output should be reviewed with the original images by a physician; overlay colors are visual differentiators only and have no independent meaning. The reviewed FDA text does not state a sample size or establish diagnostic sensitivity, specificity, or a clinical outcome claim.
The FDA listing establishes the regulatory identity. It does not by itself establish local workflow fit, pricing, security, or performance in your environment.
Use these fields to structure a vendor demo, security review, and implementation estimate.
Integration
Viz HDS is hosted on Viz.ai's cloud server, receives NCCT head scans, and returns DICOM summary and segmentation series to a customer-configured DICOM node such as PACS. Exact interfaces, versions, and local compatibility require confirmation.
Deployment category preserved from the prior exact-submission review; hosting region, data flow, and current commercial configuration still require vendor confirmation.
ACR AI Central provides an exact-submission model card for Viz HDS, Viz Volume Plus, Viz ICH+; FDA labeling remains controlling for clinical use, limitations, and performance.
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 K232363 reports clinical testing against ground truth established by trained radiologists. Upper 95% CI bounds for mean absolute error were below 7.5 mL for total intracranial hyperdensity volume, 3 mL for each lateral-ventricle volume, and 2 mm for midline-shift distance. Dice lower confidence bounds exceeded 70% for hyperdensities and both lateral ventricles, with stratification by site, demographics, slice thickness, scanner, protocol, and estimated quantity; the reviewed FDA text does not state the study sample size.
No contextualized exact-version metric has completed evidence review. Regulatory-document values, when available, are shown above with their limitations.
Viz HDS, Viz Volume Plus, Viz ICH+ regulatory performance study summary
DesignStand-Alone Performance
PopulationPopulation described in the exact-submission ACR model card
Scopeexact submission
Tested versionExact product version not reported; regulatory study summarized for FDA submission K232363
IndependenceIndependence not established
K232363
ACR AI Central summarizes the regulatory study; consult the exact FDA materials before comparative use.
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 K232363 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 K232363. 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.
Verify security and privacy controls: Exact-release security controls, data retention, hosting boundaries, and scoped assurance documentation require vendor confirmation.
Verify training: Current training prerequisites, competency checks, and support commitments for the exact configuration require vendor confirmation.
Verify pricing and total cost: No public price or quote for the exact K232363 configuration was established in this review.
Verify reimbursement and coding relevance: No exact-product payer policy, coding instruction, or payment determination was established; eligibility must be evaluated by payer, site of service, and use case.
Verify local validation and lifecycle monitoring: Current drift, quality, uptime, alert, escalation, and incident-response commitments for the exact configuration require vendor confirmation.
This audit distinguishes completed source review from fields that have not yet been researched.
Exact FDA record reviewedStatus
2026-09-20Last searched
22Fields reviewed
9Source classes checked
0Screened PubMed leads
0Screened trial leads
0Unreviewed FDA recall leads
The refreshed discovery snapshot contains no PubMed or ClinicalTrials.gov candidates; no external evidence was promoted. The current discovery snapshot contains 0 PubMed and 0 ClinicalTrials.gov candidate records; its dated, count-matched human screening remains current. Unlinked candidates remain quarantined. Native FDA recall identifiers produced 0 postmarket candidate records; 0 have been reviewed (0 published, 0 rejected) and 0 remain unreviewed.
Candidate leads were screened against the exact product and tested version. Unlinked records remain quarantined.
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 history7 sources - 3 history items
Automatic labeling, visualization, and quantification of segmentable brain structures from non-contrast head CT, including intracranial hyperdensities, lateral ventricles, and...
Modality
CT/CTA
Anatomy
Brain; intracranial hyperdensities, lateral ventricles, and midline shift
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