HeartFlow Analysis vs VX1+

Similar category, different focus. These tools serve overlapping but distinct needs. Comparability 60/100 Comparability is an AI-graded 0–100 score of how directly these two tools compete — higher means a more apples-to-apples comparison.
by Heartflow
VS
by Volta Medical

AI Verdict

Tool A focuses on non-invasive diagnosis and management of coronary artery disease using AI-powered 3D models from CT scans. In contrast, Tool B provides real-time AI assistance to electrophysiologists during cardiac ablation procedures for atrial fibrillation and atrial tachycardia by identifying abnormal electrograms. While both are cardiology AI tools, their distinct target conditions and stages of care make them complementary rather than directly competitive.

Choose HeartFlow Analysis if…

Choose HeartFlow Analysis if you require a non-invasive, AI-powered solution for the diagnosis and management of coronary artery disease (CAD). It is ideal for creating personalized 3D models of coronary arteries from standard CT scans, providing detailed FFRct and plaque analysis to inform treatment strategies before any invasive intervention.

View HeartFlow Analysis →

Choose VX1+ if…

Choose VX1+ if you are an electrophysiologist performing cardiac ablation procedures for atrial fibrillation or atrial tachycardia and need real-time, AI-driven guidance. This tool is specifically designed to assist in the immediate identification of abnormal electrograms during the procedure, enhancing the precision and potential success of the ablation.

View VX1+ →

Reviewed by Pouyan Golshani, MD — Interventional Radiologist

Quick Comparison

Feature HeartFlow Analysis VX1+
Pricing Contact vendor for pricing Unknown
Deployment Cloud-based (AWS) Software, compatible with most multipolar catheters and mapping technologies used in operating rooms or electrophysiology labs.
BAA Available Yes AI-estimated Unknown
FDA Status Cleared AI-estimated Cleared AI-estimated

Head-to-Head

AI-generated assessment across six dimensions based on each tool's documented features and compliance posture. Grounded in public data — not a substitute for hands-on evaluation.

Usability

VX1+

Tool B (VX1+) offers a 'Simple user interface with color coding' for real-time assistance during complex cardiac ablation procedures, directly aiding electrophysiologists in a high-stress environment. Tool A (HeartFlow Analysis), while seamlessly integrated into a clinical workflow, primarily provides post-scan analysis via a web interface, making its usability more about interpretation rather than immediate, interactive procedural guidance.

Clinical Value

HeartFlow Analysis

Tool A (HeartFlow Analysis) has extensive clinical validation, including multiple large-scale trials demonstrating high diagnostic accuracy, reduction in unnecessary invasive procedures, and cost savings, backed by ACC/AHA guidelines and over 600 peer-reviewed publications. While Tool B (VX1+) shows promising initial results for improving ablation outcomes, its FDA clearance explicitly states that its clinical significance for catheter ablation outcomes 'has not been established by clinical investigations'.

Pricing & Value

HeartFlow Analysis

Tool A (HeartFlow Analysis) has a clear and established value proposition with Category I CPT codes for its analyses, widespread coverage by Medicare and most U.S. commercial payers, and proven cost-effectiveness. Tool B (VX1+) lacks publicly available pricing details and established reimbursement pathways, making its financial value less transparent for potential adopters.

Enterprise Readiness

HeartFlow Analysis

Tool A (HeartFlow Analysis) explicitly states HIPAA compliance, BAA availability, FDA clearance, and adherence to robust security certifications like HITRUST, SOC 2 Type 2, ISO 13485, and ISO 27001, with cloud-based deployment on AWS. While Tool B (VX1+) integrates with existing EP systems and states a commitment to compliance, it does not explicitly confirm BAA or HIPAA in the provided facts, making HeartFlow's readiness more definitively documented.

Innovation

Tie

Both tools demonstrate significant innovation in their respective fields. Tool A (HeartFlow Analysis) pioneered non-invasive FFRct, fundamentally changing CAD diagnosis and continuing to innovate with plaque analysis. Tool B (VX1+) is groundbreaking as the first FDA-cleared AI for real-time guidance during interventional electrophysiology procedures, offering a novel approach to improving ablation outcomes.

Support & Docs

HeartFlow Analysis

Tool A (HeartFlow Analysis) provides comprehensive support, including hands-on training, technology integration, expert coding and reimbursement assistance, educational materials, peer mentorship, and dedicated clinical and technical support teams. While Tool B (VX1+) mentions a user manual and brochure, HeartFlow's documented support offerings are far more extensive and clearly articulated.

Feature-by-Feature

Detail beyond the Quick Comparison summary. For pricing, deployment, BAA, FDA, and HIPAA see the Overview tab.

Feature HeartFlow Analysis VX1+
Name HeartFlow Analysis VX1+
Company HeartFlow Volta Medical
Primary Use Case Non-invasive solution for diagnosing and managing coronary artery disease (CAD) by creating personalized 3D models of patients' coronary arteries from standard CT scans. AI-powered software that assists electrophysiologists in real-time identification of abnormal electrograms during cardiac ablation procedures for atrial fibrillation and atrial tachycardia.
Target Specialties Cardiology, Radiology Cardiology
Core AI Functionality AI-powered 3D modeling of coronary arteries; Computational Fluid Dynamics (CFD) for blood flow simulation. AI-powered real-time manual or automatic annotation of 3D anatomical and electrical maps of the human heart; Identification of spatio-temporal dispersed electrograms (DEs) during AF and AT procedures.
Specific Analytical Output Fractional Flow Reserve derived from CT (FFRct) analysis; Plaque Analysis (quantification and characterization); Roadmapu2122 Analysis for CCTA reading. AI-driven insights to assist electrophysiologists during ablation procedures; Simple user interface with color coding for electrogram dispersion (blue, orange, red); Provides cycle length estimation from electrograms.

Videos

Demos, reviews, and walkthroughs featuring HeartFlow Analysis and VX1+.

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Frequently Asked Questions

HeartFlow Analysis is designed to deliver a non-invasive solution for diagnosing and managing coronary artery disease (CAD) by creating personalized 3D models of patients' coronary arteries from standard CT scans. VX1+ is an AI-powered software that assists electrophysiologists in real-time identification of abnormal electrograms during cardiac ablation procedures for atrial fibrillation and atrial tachycardia.
HeartFlow Analysis provides a non-invasive diagnostic assessment, utilizing AI-powered 3D modeling and FFRct analysis to evaluate CAD. In contrast, VX1+ is an intra-procedural tool that offers AI-driven insights to assist electrophysiologists during invasive cardiac ablation procedures.
HeartFlow Analysis is primarily designed for Cardiology and Radiology specialties, focusing on CAD diagnosis. VX1+ is specifically tailored for Cardiology, particularly assisting electrophysiologists during ablation procedures.
HeartFlow Analysis leverages AI for 3D modeling of coronary arteries, Fractional Flow Reserve derived from CT (FFRct) analysis, and quantitative plaque analysis. VX1+ uses AI to assist in real-time manual or automatic annotation of 3D anatomical and electrical maps of the human heart and to identify spatio-temporal dispersed electrograms (DEs) during AF and AT procedures.
Both HeartFlow Analysis and VX1+ have FDA clearance. HeartFlow Analysis explicitly states it is HIPAA compliant and has a Business Associate Agreement (BAA) available, while HIPAA compliance and a BAA are not explicitly stated for VX1+ but are expected for a medical device used in U.S. healthcare settings.

Backers

Who funded each tool's parent company.

HeartFlow Analysis

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