HeartFlow vs Viz.ai
HeartFlow and Viz.ai both compete in radiology, but answer different questions. HeartFlow is our pick for reimbursable CCTA AI: Non-invasive CCTA-derived FFR, reimbursable since CPT 75577 (Jan 2026). Viz.ai earns the stroke + cardio coordination slot: Stroke + cardio + PE coordination at 1,700+ US hospitals. The right choice depends on whether your priority is reimbursable ccta ai or stroke + cardio coordination.
- Radiology
- 02
- May 23, 2026
How HeartFlow and Viz.ai compare
Pricing, compliance, and integrations sourced from vendor documentation. Verified May 23, 2026.
| Spec | HeartFlow | Viz.ai |
|---|---|---|
| Pricing | Enterprise (per-study, reimbursable). | Enterprise (per-site subscription). |
| Free tier | Yes | Yes |
| HIPAA | No / unverified | Yes |
| SOC 2 Type II | No / unverified | No / unverified |
| EHR integrations | Not specified | Not specified |
| Founded | — | 2016 |
| HQ | US | US |
| Best for | Best reimbursable CCTA AI | Best for stroke + cardio coordination |
Scroll horizontally to see both columns.
When to pick each one
Best reimbursable CCTA AI
Non-invasive CCTA-derived FFR, reimbursable since CPT 75577 (Jan 2026).
- Most clinical-evidence-backed CCTA AI
- IPO filed 2026
- Eliminates invasive angiography for many patients
Best for stroke + cardio coordination
Stroke + cardio + PE coordination at 1,700+ US hospitals.
- 50+ FDA clearances
- Strongest care-coordination workflow layer beyond pure detection
Other head-to-heads worth reading
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.
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