Circle Cardiovascular Imaging vs Elucid
Elucid's PlaqueIQ is a service. Per its 2024 release, the physician sends CCTA images to Elucid, and trained analysts segment a 3D coronary model before the software quantifies plaque. It is billed to providers per analysis with no public price. Category I CPT 75577 for coronary plaque analysis took effect on January 1, 2026, with a national average of about $1,012 at imaging centers and physician offices per DAIC (currency not stated, and one Elucid release prints $1,021). That rate is the Medicare payment to the performing site and says nothing about Elucid's fee.
FDA decisions are K241524 (September 12, 2024) and K261855 (September 18, 2026), with the cleared claim limited to plaque quantification that supports clinicians.
Circle's cvi42 platform carries an AI Plaque Analysis module, with clearance K251027 for the cvi42 Coronary Plaque Software Application on October 27, 2025. For a cardiology practice that wants a software module rather than an outside analysis service, Elucid is the weaker pick, since Elucid receives the images and has analysts segment them while Circle sells the cvi42 module, which the vendor says integrates with existing systems and workflows. A practice that would rather outsource the segmentation is Elucid's buyer.
Radiology · Reviewed November 2, 2026

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.

Elucid
by Elucid Bioimaging
PlaqueIQ analyzes coronary plaque on CT angiograms, with FDA 510(k) clearances in September 2024 and September 2026.
When to pick each one
Circle Cardiovascular Imaging
- cvi42 Coronary Plaque clearance K251027
- AI Plaque Analysis module with detailed reporting
- Reimbursement calculator page, no public price
Elucid
- PlaqueIQ billed per analysis
- Category I CPT 75577 from January 2026
- US$55M Series D announced September 2026
Score
Each row shows points earned of points available under the published rubric.
Circle Cardiovascular Imaging
42of 100
Elucid
43of 100
| Dimension | Circle Cardiovascular Imaging | Elucid | Difference |
|---|---|---|---|
| FDA clearance | 18 / 18 | 18 / 18 | 0 |
| HIPAA / SOC2 / BAA | 0 / 10 | 0 / 10 | 0 |
| EHR integrations (count) | 0 / 4.2 | 0 / 4.2 | 0 |
| Top-3 EHR coverage (Epic / Oracle / Athena) | 0 / 2.4 | 0 / 2.4 | 0 |
| Peer-reviewed papers | 0 / 18.2 | 12.7 / 18.2 | -12.7 |
| RCT / meta-analysis / systematic review | 0 / 7.8 | 0 / 7.8 | 0 |
| Funding & adoption signal | 8.4 / 12 | 3 / 12 | +5.4 |
| Pricing transparency | 2.5 / 5 | 2.5 / 5 | 0 |
| Years in market | 6 / 6 | 0 / 6 | +6 |
Scroll horizontally to see every column.
Pricing
Circle Cardiovascular Imaging
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Enterprise | n/a | n/a | No public price. |
Elucid
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Per analysis | n/a | n/a | No public price. Providers are billed per analysis. Category I CPT code 75577 has applied since January 1, 2026. |
Evidence
Circle Cardiovascular Imaging
FDA decisions
K251027 (opens in new tab)510(k)2025-10-27
cvi42 Coronary Plaque Software Application
K250221 (opens in new tab)510(k)2025-07-01
StrokeSENS ASPECTS Software Application
K242781 (opens in new tab)510(k)2024-10-15
cvi42 Software Application
K241038 (opens in new tab)510(k)2024-06-07
Cardiac CT Function Software Application
K232661 (opens in new tab)510(k)2023-12-07
Myocardial Strain Software Application
Show 7 more
K222593 (opens in new tab)510(k)2023-01-18
TruPlan Computed Tomography Imaging Software
K213998 (opens in new tab)510(k)2022-07-28
cvi42 Auto Imaging Software Application
K212261 (opens in new tab)510(k)2021-10-14
StrokeSENS LVO
K202212 (opens in new tab)510(k)2021-02-19
TruPlan
K141480 (opens in new tab)510(k)2014-08-22
CVI42
K111373 (opens in new tab)510(k)2011-08-23
CT42 Cardiac CT Software
K082628 (opens in new tab)510(k)2008-11-20
CMR42 Cardiac MRI Imaging System
Elucid
FDA decisions
K261855 (opens in new tab)510(k)2026-09-18
Elucid PlaqueIQ
K241524 (opens in new tab)510(k)2024-09-12
Elucid PlaqueIQ
Peer-reviewed
2 PubMed records name Elucid.
Compliance and integrations
Documented from each vendor’s own pages.
| Spec | Circle Cardiovascular Imaging | Elucid |
|---|---|---|
| Free tier | ||
| HIPAA | ||
| SOC 2 Type II | ||
| EHR integrations | Not specified | Not specified |
| Founded | 2007 | n/a |
| HQ | CA | n/a |
Scroll horizontally to see both columns.
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.
