Authorized purpose: Concurrent-reader aid for a radiologist detecting pulmonary nodules during review of chest CT examinations in the lung cancer screening population under screening protocols.
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: Concurrent-reader aid for a radiologist detecting pulmonary nodules during review of chest CT examinations in the lung cancer screening population under screening protocols.
Overview status: Source-reviewed overview
What does this software do?Authorized purpose: Concurrent-reader aid for a radiologist detecting pulmonary nodules during review of chest CT examinations in the lung cancer screening population under screening protocols.
Which images or clinical context are in scope?Modality: CT/CTA Anatomy or clinical context: Chest/lungs; pulmonary nodules Input: Non-contrast chest CT in DICOM format, with both lungs in the field of view and slice thickness less than 3 mm; the comparison matrix lists Canon, GE, Philips, and Siemens CT systems.
Who uses it?Intended users: Radiologist
What does the software produce?Output: Pulmonary-nodule bounding boxes, segmented contours, and measurements including volume, long-axis length, short-axis length, average-axis length, and average Hounsfield-unit value, displayed over the original CT series in a PACS viewer.
What is its most important limitation?Key limitation: Both lungs must be in the field of view; the device is not intended for use without the original CT series or to differentiate detected regions as benign or malignant. It is an adjunctive concurrent reader, not a substitute for the original study and radiologist interpretation.
Clinical takeaway
Clinical role: Concurrent-reader aid for a radiologist detecting pulmonary nodules during review of chest CT examinations in the lung cancer screening population under screening protocols.
Evidence takeaway
Evidence from the reviewed source record: The FDA packet reports a retrospective MRMC study and standalone evaluation on 300 low-dose chest CT exams from three geographically distinct US regions: 100 with at least one nodule and 200 controls; ground truth was a consensus of three board-certified thoracic radiologists and 15 readers participated. MRMC AUROC increased from 0.768 unaided to 0.835 aided (difference 0.067, p<0.001), LROC from 0.723 to 0.800 (difference 0.076, p<0.001), and reading time fell by 0.76 minutes. Standalone nodule-detection sensitivity was 78.3% (95% CI 71.0-84.8), false-positive rate was 0.76 per case (95% CI 0.64-0.90), and 3D nodule-segmentation Dice was 0.81 (95% CI 0.79-0.83).
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
Concurrent-reader aid for a radiologist detecting pulmonary nodules during review of chest CT examinations in the lung cancer screening population under screening protocols.
Non-contrast chest CT in DICOM format, with both lungs in the field of view and slice thickness less than 3 mm; the comparison matrix lists Canon, GE, Philips, and Siemens CT systems.
Pulmonary-nodule bounding boxes, segmented contours, and measurements including volume, long-axis length, short-axis length, average-axis length, and average Hounsfield-unit value, displayed over the original CT series in a PACS viewer.
Both lungs must be in the field of view; the device is not intended for use without the original CT series or to differentiate detected regions as benign or malignant. It is an adjunctive concurrent reader, not a substitute for the original study and radiologist interpretation.
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
Retrieves DICOM images from PACS and returns nodule information to PACS, specifically Synapse PACS K190232, as an add-on with FUJIFILM hosting applications. The comparison matrix requires a PACS or DICOM-capable image viewer.
ACR AI Central provides an exact-submission model card for Synapse Lung Nodule AI; 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
The FDA packet reports a retrospective MRMC study and standalone evaluation on 300 low-dose chest CT exams from three geographically distinct US regions: 100 with at least one nodule and 200 controls; ground truth was a consensus of three board-certified thoracic radiologists and 15 readers participated. MRMC AUROC increased from 0.768 unaided to 0.835 aided (difference 0.067, p<0.001), LROC from 0.723 to 0.800 (difference 0.076, p<0.001), and reading time fell by 0.76 minutes. Standalone nodule-detection sensitivity was 78.3% (95% CI 71.0-84.8), false-positive rate was 0.76 per case (95% CI 0.64-0.90), and 3D nodule-segmentation Dice was 0.81 (95% CI 0.79-0.83).
No contextualized exact-version metric has completed evidence review. Regulatory-document values, when available, are shown above with their limitations.
Synapse Lung Nodule AI regulatory performance study summary
DesignReader Study
PopulationAdult
Scopeexact submission
Tested versionExact product version not reported; regulatory study summarized for FDA submission K254075
IndependenceIndependence not established
K254075
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 K254075 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 K254075. 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 deployment and data flow: The reviewed sources do not establish the current exact-release hosting topology, data flow, region, tenancy, or disaster-recovery configuration.
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 K254075 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
23Fields 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, acr ai central product, fda decision summary, 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
eyonis LCS is a concurrent-reading aid for radiologists that detects, localizes, and characterizes 4-30 mm solid and part-solid pulmonary nodules on low-dose chest CT images for...
Characterization and relative cancer-risk assessment of incidentally detected pulmonary nodules 6-15 mm in adults, with use as one input to follow-up and clinical decision-making...
Adjunctive pulmonary nodule detection and measurement, including temporal comparison, in chest CT screening of asymptomatic adults aged at least 55 years.