FDA-cleared profile

aBSI

EXINI Diagnostics AB

Authorized purpose: aBSI analyzes nuclear-medicine whole-body bone scans and SPECT to mark lesions and quantify skeletal disease burden as a fraction of total skeletal weight for trained professionals and researchers; the cloud release does not accept CT or static partial bone scans.

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: aBSI analyzes nuclear-medicine whole-body bone scans and SPECT to mark lesions and quantify skeletal disease burden as a fraction of total skeletal weight for trained professionals and researchers; the cloud release does not accept CT or static partial bone scans.

Overview status: Source-reviewed overview

Clinical takeaway

Clinical role: aBSI analyzes nuclear-medicine whole-body bone scans and SPECT to mark lesions and quantify skeletal disease burden as a fraction of total skeletal weight for trained professionals and researchers; the cloud release does not accept CT or static partial bone scans.

Evidence takeaway

Evidence from the reviewed source record: K191262 reports analytical, reproducibility, phantom, and two clinical studies. In a 721-patient phase III analysis, baseline aBSI was associated with overall survival and remained independently associated after adjustment; a separate 169-patient analysis found that an aBSI increase of 0.6 had the same 0.52 association with time to radiographic bone progression as PCWG criteria.

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
aBSI analyzes nuclear-medicine whole-body bone scans and SPECT to mark lesions and quantify skeletal disease burden as a fraction of total skeletal weight for trained professionals and researchers; the cloud release does not accept CT or static partial bone scans.
  • 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
Trained healthcare professionals and researchers interpreting nuclear-medicine bone scans.
  • 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.

Care setting and population
Healthcare clinics and research workflows using whole-body bone scintigraphy or SPECT.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-03
Workflow role
Cloud-based lesion marking, quantitative Bone Scan Index calculation, longitudinal display, and reporting.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03
Required input
DICOM 3 whole-body bone scans and SPECT; CT images are not accepted, and static (partial) bone scans are not required or used for BSI calculation.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

The exact subject-device comparison provides the DICOM 3 input types and the CT/static-partial boundary.

Output and human action
Marked hotspots, quantitative aBSI, image display, reports, and optional CSV research export.
  • 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
Although unlikely, an incorrect BSI value could potentially contribute to the risk of an incorrect therapy decision or delay in the delivery of appropriate care.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

The exact software-risk discussion states this consequence boundary; the packet does not state the prior threshold, acquisition, urinary-activity, or standalone-diagnosis wording.

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
K191262
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Modality
PET/SPECT/Nuclear Medicine
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

The exact indication names nuclear-medicine imaging and the subject-device comparison lists DICOM 3 whole-body bone scans and SPECT; it does not support the dossier's PET wording. Controlled directory display reconciled from exact FDA wording: Nuclear medicine (NM) imaging, including DICOM 3 whole-body bone scans and SPECT. -> PET/SPECT/Nuclear Medicine.

Anatomy
Bone
  • 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
2019-08-05
  • 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
Cloud service accessed through a personal login on Windows or macOS Chrome, with image upload from a local or network folder; validate DICOM transfer, identity, patient matching, longitudinal alignment, browser support, and result export.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03
Deployment and data flow
Cloud-hosted software service accessed by a supported browser; exact tenancy, region, retention, identity, audit, and support controls require vendor confirmation.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03
Security and privacy
K191262 describes cloud hosting and personal login but not a complete security architecture. Obtain current encryption, identity, audit, data residency, retention, vulnerability, backup, support-access, and incident-response evidence.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-03

Confirm the controls against the exact contracted architecture and release.

Training and support
Only trained healthcare professionals and researchers interpreting nuclear-medicine bone scans. should operate or interpret the system. Local onboarding should cover the exact release, supported population, limitations, failure examples, escalation, downtime, and competency documentation.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-03
Monitoring and change control
Monitor by exact hardware, software and model version, patient population, anatomy, protocol, operator, input quality, output edits or overrides, failed studies, repeat acquisition or rework, downstream impact, downtime, incidents, recalls, and updates. Track the limits that matter for this product: aBSI is quantitative decision support, not a standalone metastasis diagnosis. Threshold-dependent staging performance can trade sensitivity against specificity, and scan counts, acquisition speed, urinary activity, protocol, and disease burden can affect results.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03

Release and scope verification

Map the installed model, build, options, population, anatomy, inputs, and outputs to K191262 before acceptance.

exact submission · checked 2026-09-03

Later product-family features are not evidence that this cleared release includes them.

Interoperability acceptance

Cloud service accessed through a personal login on Windows or macOS Chrome, with image upload from a local or network folder; validate DICOM transfer, identity, patient matching, longitudinal alignment, browser support, and result export.

exact submission · checked 2026-09-03

Test representative identifiers, orientation, geometry, measurements, units, routing, failure handling, and round trips locally.

Clinical acceptance

Use a signed local test set for the supported population and workflow. Include common and difficult cases, exclusions, acquisition variation, failed or low-quality inputs, reviewer overrides, and downstream effects. aBSI is quantitative decision support, not a standalone metastasis diagnosis. Threshold-dependent staging performance can trade sensitivity against specificity, and scan counts, acquisition speed, urinary activity, protocol, and disease burden can affect results.

exact submission · checked 2026-09-03

Define stop-use, escalation, rollback, and revalidation triggers before production use.

Economic evaluation

Model capital and recurring cost against net staff time after review, throughput, repeat imaging or rework, room time, consumables, infrastructure, training, service, downtime, upgrade, and replacement costs.

product family · checked 2026-09-03

Vendor productivity claims are scenario inputs, not guaranteed local savings.

Lifecycle monitoring

Monitor by exact hardware, software and model version, patient population, anatomy, protocol, operator, input quality, output edits or overrides, failed studies, repeat acquisition or rework, downstream impact, downtime, incidents, recalls, and updates. Track the limits that matter for this product: aBSI is quantitative decision support, not a standalone metastasis diagnosis. Threshold-dependent staging performance can trade sensitivity against specificity, and scan counts, acquisition speed, urinary activity, protocol, and disease burden can affect results.

exact submission · checked 2026-09-03

Revalidate after material software, hardware, model, protocol, interface, or clinical-policy changes.

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
K191262 reports analytical, reproducibility, phantom, and two clinical studies. In a 721-patient phase III analysis, baseline aBSI was associated with overall survival and remained independently associated after adjustment; a separate 169-patient analysis found that an aBSI increase of 0.6 had the same 0.52 association with time to radiographic bone progression as PCWG criteria.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03
Reported sensitivity
Not applicable
  • Not applicable
  • Not applicable
  • Checked 2026-09-03

Sensitivity is not the primary applicable endpoint for this acquisition, reconstruction, segmentation, planning, guidance, or quantitative-biomarker function. Use the task-specific endpoints and tested population reported below.

Reported specificity
Not applicable
  • Not applicable
  • Not applicable
  • Checked 2026-09-03

Specificity is not the primary applicable endpoint for this acquisition, reconstruction, segmentation, planning, guidance, or quantitative-biomarker function. Use the task-specific endpoints and tested population reported below.

Phase III evaluable patients

721 patients

  • EndpointAssociation of baseline aBSI with outcomes
  • PopulationaBSI
  • Tested versionaBSI version 3.4 cleared in K191262

Baseline aBSI overall-survival hazard ratio

1.2 hazard ratio

  • EndpointOverall survival per aBSI relationship
  • PopulationaBSI
  • Tested versionaBSI version 3.4 cleared in K191262

Adjusted overall-survival hazard ratio

1.06 hazard ratio

  • EndpointMultivariable overall survival
  • PopulationaBSI
  • Tested versionaBSI version 3.4 cleared in K191262

Progression association

0.52 Kendall tau

  • EndpointaBSI increase of 0.6 and radiographic progression
  • PopulationaBSI
  • Tested versionaBSI version 3.4 cleared in K191262

Earlier-version linearity correlation

0.995 Pearson r

  • EndpointSimulated BSI from 0.10 to 13.0
  • PopulationaBSI
  • Tested versionEXINI bone BSI version 2

Earlier-version interobserver agreement

0.96 kappa

  • EndpointAutomated change interpretation
  • PopulationaBSI
  • Tested versionEXINI bone BSI version 2

Staging sensitivity at BSI greater than 0

100 %

  • EndpointMetastasis classification against available reference
  • PopulationaBSI
  • Tested versionEXINI Bone version 1.6.2

Staging specificity at BSI greater than 0

36.2 %

  • EndpointMetastasis classification against available reference
  • PopulationaBSI
  • Tested versionEXINI Bone version 1.6.2

K191262 FDA performance package for aBSI

  • DesignManufacturer analytical validation plus prospective planned phase III and retrospective clinical-outcome analyses
  • PopulationMen with metastatic castration-resistant prostate cancer
  • Scopeexact submission
  • Tested versionaBSI version 3.4 cleared in K191262
  • Samplen=721
  • Sites241
  • IndependenceSponsor or vendor study

K191262

Manufacturer evidence submitted for substantial equivalence; local clinical, technical, and workflow acceptance remains necessary.

Analytic validation of automated Bone Scan Index

  • DesignIndependent analytic simulation, repeat-scan, and follow-up agreement studies
  • PopulationSimulated bone scans and patients with metastatic prostate cancer
  • Scopeproduct family
  • Tested versionEXINI bone BSI version 2; not exact aBSI 3.4
  • Samplen=173
  • IndependenceIndependent study

PMC4975929

Algorithm-family evidence with an earlier version; includes a documented bladder-region blind spot.

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
Not established in reviewed sources
  • Reviewed sources checked
  • Exact FDA submission
  • Checked 2026-09-03

No public list price for the exact cleared configuration was found. Obtain a written quote separating hardware or license basis, enabled features, implementation, interfaces, infrastructure, training, service, upgrades, renewal, consumables, and exit costs.

Reimbursement and coding
No separate named-product Medicare payment was identified in the reviewed CMS coverage material. Evaluate the device within the applicable imaging or surgical service line and verify payer, site-of-service, and coding assumptions independently.
  • Public source
  • Not applicable
  • Checked 2026-09-03

No product-specific code

No separate named-product payment identified in reviewed public material

Centers for Medicare & Medicaid Services · United States

Build a local total-cost and value model; do not infer reimbursement from FDA clearance.

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 2026-09-02 openFDA device-recall snapshot contained no record matched to K191262 by exact submission identifier.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03

A zero-result exact-identifier search does not prove that no recall, correction, adverse-event report, or product-family safety signal exists.

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
2026-09-20Last searched
27Fields reviewed
11Source classes checked
20Screened PubMed leads
10Screened trial leads
0Unreviewed FDA recall leads

The refreshed discovery snapshot contains 20 PubMed and 10 ClinicalTrials.gov candidate records. Discovery metadata alone does not establish exact tested-product, version, population, and endpoint applicability, so all candidates remain quarantined and none was promoted. The current discovery snapshot contains 20 PubMed and 10 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, peer reviewed publication, reimbursement policy, fda device recall, fda decision summary packet, 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 K191262: aBSI

    U.S. Food and Drug Administration - Published 2019-08-05 - Accessed 2026-09-19

    Scope: purpose, anatomy, intendedUsers, output, evidenceSummary, modality, input, limitations, clinicalUse

  2. Artificial Intelligence-Enabled Medical Devices

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

    Scope: regulatoryIdentity, modalityContext

  3. PubMed biomedical literature index

    U.S. National Library of Medicine - Accessed 2026-09-01

    Scope: evidenceDiscovery

  4. ClinicalTrials.gov study registry

    U.S. National Library of Medicine - Accessed 2026-09-01

    Scope: evidenceDiscovery, studyStatus

  5. Medicare Coverage Database

    Centers for Medicare & Medicaid Services - Accessed 2026-09-01

    Scope: coverage, codingContext

  6. openFDA Device Recall API

    U.S. Food and Drug Administration - Accessed 2026-09-02

    Scope: recallDiscovery, nativeSubmissionMatching

  7. Analytic validation of automated Bone Scan Index as an imaging biomarker

    Journal of Nuclear Medicine - Accessed 2026-09-03

    Scope: limitations, evidenceSummary, evidenceStudy, evidenceMetrics, monitoring

  8. Prospective evaluation of computer-assisted skeletal-lesion analysis for prostate-cancer staging

    BMC Medical Imaging - Accessed 2026-09-03

    Scope: limitations, evidenceSummary, evidenceStudy, evidenceMetrics, monitoring

Research history

  1. K191262 FDA decision

    Regulatory record

    510(k)

  2. Source-review record updated

    Research record

    fda record reviewed

  3. Reader overview source-reviewed

    Editorial review

    Source-reviewed editorial overlay

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