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Bunkerhill Health vs Circle Cardiovascular Imaging

Circle's cvi42 is analysis software for the cardiac imaging lab: cardiac MR and CT, strain, mapping, plaque and calcium quantification. Its openFDA record runs to 12 entries under two applicant names, from CMR42 in 2008 to the cvi42 Coronary Plaque application (K251027) in October 2025. The vendor lists ISO 13485:2016 and MDSAP certificates, plus integrated solutions with GE Healthcare and Siemens Healthineers. It fits a cardiac MR lab or a CT lab that reads and measures its own studies.

Bunkerhill sells an agent platform to health systems and holds nine openFDA clearances: iCAC (K230223), CAC (gated, K240369), AVC (K243229), BMD (K242295), aortic quantification (K243779), ECG-EF (K250649), MAC (K250662) and contrast versions of CAC and AVC from March 2026. Its homepage lists heart failure follow-up for patients with LVEF 40% or below.

Cardiology leaders at a health system comparing the two meet at coronary calcium, which each product list covers. Beyond that the products serve different desks, Circle the lab that measures and Bunkerhill the system that wants algorithm results to drive follow-up work.

Radiology · Reviewed November 2, 2026

Bunkerhill Health logo

Bunkerhill Health

by Bunkerhill Health

AI agent platform for health systems covering referrals, prior auth, care coordination and imaging, built on nine FDA-cleared imaging algorithms.

Circle Cardiovascular Imaging logo

Circle Cardiovascular Imaging

by Circle Cardiovascular Imaging Inc. · founded 2007

cvi42 cardiac MR and CT software with FDA-cleared AI coronary plaque analysis and StrokeSENS acute stroke tools.

When to pick each one

Bunkerhill Health

  • Nine openFDA clearances, CAC, AVC, MAC and ECG-EF
  • Heart failure follow-up agent, LVEF 40% or below
Read the full Bunkerhill Health review

Circle Cardiovascular Imaging

  • cvi42 Coronary Plaque, K251027, October 2025
  • Cardiac MR strain and mapping software
  • ISO 13485:2016 and MDSAP certificates
Read the full Circle Cardiovascular Imaging review

Score

Each row shows points earned of points available under the published rubric.

Bunkerhill Health

40of 100

Competitive

Circle Cardiovascular Imaging

42of 100

Competitive
Score by dimension for Bunkerhill Health and Circle Cardiovascular Imaging
DimensionBunkerhill HealthCircle Cardiovascular ImagingDifference
FDA clearance18 / 1818 / 180
HIPAA / SOC2 / BAA10 / 100 / 10+10
EHR integrations (count)0 / 4.20 / 4.20
Top-3 EHR coverage (Epic / Oracle / Athena)0 / 2.40 / 2.40
Peer-reviewed papers0 / 18.20 / 18.20
RCT / meta-analysis / systematic review0 / 7.80 / 7.80
Funding & adoption signal3 / 128.4 / 12-5.4
Pricing transparency2.5 / 52.5 / 50
Years in market0 / 66 / 6-6

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How scores are computed

Pricing

Bunkerhill Health

TierMonthlyAnnualNotes
Quote onlyn/an/aNo public price. The site offers a demo request only.

Circle Cardiovascular Imaging

TierMonthlyAnnualNotes
Enterprisen/an/aNo public price.

Evidence

Bunkerhill Health

FDA decisions

Show 4 more

Circle Cardiovascular Imaging

FDA decisions

Show 7 more

Compliance and integrations

Documented from each vendor’s own pages.

SpecBunkerhill HealthCircle Cardiovascular Imaging
Free tierNo / unverifiedNo / unverified
HIPAAYesNo / unverified
SOC 2 Type IIYesNo / unverified
EHR integrationsNot specifiedNot specified
Foundedn/a2007
HQn/aCA

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Common questions

Open the full radiology comparison

Acute-care triage, mammography screening, CCTA plaque analysis, mobile MRI. 30+ FDA-cleared platforms across stroke, oncology, cardiac. Enterprise sales only — we compared what's deployed where.