HeartFlow vs RapidAI
For a hospital with a stroke code line but no CT perfusion protocol or neurointerventional team, RapidAI is the weaker buy. Its modules center on CT perfusion, ASPECTS, LVO triage and ICH, the license is enterprise and hospital-level, and the vendor claims use in more than 2,500 hospitals. The 510(k)s cover Rapid ICH, Rapid ASPECTS and Rapid LVO, a computer-assisted triage and notification device, and the platform adds pulmonary embolism and aortic modules. Across LVO tools including RapidAI, a scoping review put proximal LVO sensitivity at 78 to 97%, with more variation for distal and posterior occlusions. HeartFlow analyses coronary CT angiograms for fractional flow reserve and plaque, and a cardiac CT lab pays per case under the pay-per-use model its 10-K describes, with no list price.
Radiology · Reviewed November 2, 2026
When to pick each one
HeartFlow
- Pay-per-use billing per its 10-K
- Coronary flow and plaque analysis
RapidAI
- Rapid ICH, ASPECTS and LVO modules, 510(k) cleared
- Enterprise hospital license, no public price
Score
Each row shows points earned of points available under the published rubric.
HeartFlow
66of 100
RapidAI
65of 100
| Dimension | HeartFlow | RapidAI | 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 | 12.7 / 18.2 | 12.7 / 18.2 | 0 |
| RCT / meta-analysis / systematic review | 7.8 / 7.8 | 3.9 / 7.8 | +3.9 |
| Funding & adoption signal | 8.4 / 12 | 8.4 / 12 | 0 |
| Pricing transparency | 2.5 / 5 | 5 / 5 | -2.5 |
| Years in market | 6 / 6 | 6 / 6 | 0 |
Scroll horizontally to see every column.
Pricing
HeartFlow
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Per study | n/a | n/a | No public list price. The 10-K describes revenue as pay-per-use. |
RapidAI
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Plan | n/a | n/a | Enterprise. |
Evidence
HeartFlow
FDA decisions
K250902 (opens in new tab)510(k)2025-07-18
HeartFlow Analysis
K213857 (opens in new tab)510(k)2022-10-14
HeartFlow Analysis
K203329 (opens in new tab)510(k)2021-01-08
HeartFlow Analysis
K190925 (opens in new tab)510(k)2019-08-15
K182035 (opens in new tab)510(k)2018-12-06
Show 3 more
K161772 (opens in new tab)510(k)2016-08-24
K152733 (opens in new tab)510(k)2016-01-13
DEN130045 (opens in new tab)De Novo2014-11-26
FFRct
Peer-reviewed
2 PubMed records name HeartFlow.
- Prognostic value of CT-derived fractional flow reserve for major adverse cardiovascular events in patients with suspected or known coronary artery disease: a systematic review and meta-analysis. (opens in new tab)
- Diagnostic Performance of AI-enabled Plaque Quantification from Coronary CT Angiography Compared with Intravascular Ultrasound. (opens in new tab)
RapidAI
FDA decisions
K233512 (opens in new tab)510(k)2024-01-16
Rapid (6.0)
K213165 (opens in new tab)510(k)2022-02-08
Rapid
K200941 (opens in new tab)510(k)2020-07-09
Rapid LVO
K200760 (opens in new tab)510(k)2020-06-26
Rapid ASPECTS
K193087 (opens in new tab)510(k)2020-03-31
Rapid ICH
Show 2 more
K182130 (opens in new tab)510(k)2018-12-27
iSchemaView RAPID
K121447 (opens in new tab)510(k)2013-10-04
ISCHEMA VIEW RAPID
Peer-reviewed
4 PubMed records name RapidAI.
- A Comparison of CT Perfusion Output of RapidAI and Viz.ai Software in the Evaluation of Acute Ischemic Stroke. (opens in new tab)
- Transforming Stroke Diagnosis with Artificial Intelligence: A Scoping Review of Brainomix e-Stroke, Aidoc, RapidAI, and Viz.ai. (opens in new tab)
- Impact of RapidAI mobile application on treatment times in patients with large vessel occlusion. (opens in new tab)
Compliance and integrations
Documented from each vendor’s own pages.
| Spec | HeartFlow | RapidAI |
|---|---|---|
| Free tier | ||
| HIPAA | ||
| SOC 2 Type II | ||
| EHR integrations | Not specified | Not specified |
| Founded | 2007 | 2017 |
| HQ | US | US |
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.


