Circle Cardiovascular Imaging vs EchoNous
One vendor sells an ultraportable ultrasound for the bedside and the other sells software for MR and CT studies.
Kosmos Plus costs less than $20k by EchoNous's own FAQ (currency not stated), with a five-year warranty. The FAQ also says Kosmos supports a DICOM modality worklist once a profile is created, and the home page claims HIPAA and SOC2 compliance. The AI tools are Bladder AI, automated ejection fraction, Auto Doppler gate placement and AI FAST labeling. EchoNous is based in Redmond, Washington and was founded in 2016. Kosmos goes to a ward or clinic that wants ejection fraction on screen from an ultraportable echo.
Circle is Canadian-based and says it was founded in 2007. BSI issued its ISO 13485:2016 and MDSAP certificates, and the partner-integrations page names integrated solutions with GE Healthcare and Siemens Healthineers. The vendor claims 600+ OEM deployments through distributors. Circle sells to a hospital that runs cardiac MR or CT on GE or Siemens systems and wants strain and plaque quantification in cvi42.
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.
EchoNous
by EchoNous Inc. · founded 2016
Kosmos handheld ultrasound with AI bladder volume, ejection fraction, Doppler gate and FAST view guidance.
When to pick each one
Circle Cardiovascular Imaging
- ISO 13485 and MDSAP certificates from BSI
- Integrated solutions with GE Healthcare and Siemens
- Cardiac MR and CT analysis
EchoNous
- Kosmos Plus under $20k, currency not stated
- DICOM modality worklist through a created profile
- Bladder, ejection fraction, Doppler and FAST AI
Score
Each row shows points earned of points available under the published rubric.
Circle Cardiovascular Imaging
42of 100
EchoNous
78of 100
| Dimension | Circle Cardiovascular Imaging | EchoNous | Difference |
|---|---|---|---|
| FDA clearance | 18 / 18 | 18 / 18 | 0 |
| HIPAA / SOC2 / BAA | 0 / 10 | 10 / 10 | -10 |
| 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 | 18.2 / 18.2 | -18.2 |
| RCT / meta-analysis / systematic review | 0 / 7.8 | 7.8 / 7.8 | -7.8 |
| Funding & adoption signal | 8.4 / 12 | 3 / 12 | +5.4 |
| Pricing transparency | 2.5 / 5 | 2.5 / 5 | 0 |
| Years in market | 6 / 6 | 6 / 6 | 0 |
Scroll horizontally to see every column.
Pricing
Circle Cardiovascular Imaging
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Enterprise | n/a | n/a | No public price. |
EchoNous
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Enterprise | n/a | n/a | No public price. The vendor says Kosmos Plus costs less than $20k. |
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
EchoNous
FDA decisions
K242321 (opens in new tab)510(k)2025-04-25
Kosmos
K233826 (opens in new tab)510(k)2024-08-29
Kosmos
K212100 (opens in new tab)510(k)2021-08-06
Kosmos
K193518 (opens in new tab)510(k)2020-03-26
KOSMOS
Peer-reviewed
5 PubMed records name EchoNous.
- Army Medic Performance in Trauma Sonography: The Impact of Artificial Intelligence Assistance in Focused Assessments With Sonography in Trauma-A Prospective Randomized Controlled Trial. (opens in new tab)
- Point-of-care AI-enhanced novice echocardiography for screening heart failure (PANES-HF). (opens in new tab)
- Validation of a hand-held ultrasound device in the evaluation of aortic stenosis. (opens in new tab)
Compliance and integrations
Documented from each vendor’s own pages.
| Spec | Circle Cardiovascular Imaging | EchoNous |
|---|---|---|
| Free tier | ||
| HIPAA | ||
| SOC 2 Type II | ||
| EHR integrations | Not specified | Not specified |
| Founded | 2007 | 2016 |
| HQ | CA | US |
Scroll horizontally to see both columns.
Common questions
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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.