QFR
Overview
QFR by QFR Solutions bv is a medical software device designed for the visualization and advanced analysis of X-ray angiographic images, specifically focusing on coronary vessel segments. It utilizes artificial intelligence to perform calculations and reconstruct 3D models of coronary arteries, enabling quantitative assessment of lesions and determination of their functional significance through Quantitative Flow Ratio (QFR) analysis. Key AI capabilities include automated end-diastolic frame selection and precise alignment of angiographic projections. This tool is intended to support cardiologists and radiologists in clinical decision-making regarding the diagnosis and treatment of coronary artery disease. It is important to note that this tool is a cardiology imaging analysis software and not an AI tool for a physician directory.
Reviewed by Pouyan Golshani, MD — Interventional Radiologist
Key Features
- Visualization of X-ray angiographic images
- Analysis and calculations in coronary vessel segments
- Automatic detection and editing of vessel contours
- 3D reconstruction of coronary vessel models
- Accurate anatomical quantification of lesions
- Quantitative Flow Ratio (QFR) assessment for functional significance
- AI-enabled end-diastolic frame selection
- Deep learning for precise alignment of angiographic projections
- Non-invasive (no pressure wire, no adenosine required)
- Applicable online and/or offline, pre-, during-, and post-PCI
Use Cases
- Support clinical decision-making for diagnosis and treatment of coronary vessels
- Evaluate interventions or drug therapy for coronary conditions
- Assess functional severity and guide revascularization decisions for epicardial artery stenosis
- Aid in precise lesion selection in multivessel disease
- Assist in managing patients with chronic heart failure
- Provide quality assessment of stent placement after PCI
What Physicians Need to Know
Utilize QFR for a non-invasive assessment of intermediate coronary lesions to guide revascularization decisions, leveraging its established cutoff values (e.g., <0.80 for significant stenosis, >0.90 post-PCI for successful intervention). Consider QFR for both immediate and retrospective analysis of angiograms to enhance decision-making. While QFR offers significant advantages in efficiency and reduced invasiveness, be mindful of ongoing research and guideline discussions, and consider a hybrid approach with FFR for equivocal cases to ensure comprehensive patient care. Explore its capability to assess microcirculation (angio-IMR) for a more holistic understanding of coronary artery disease.
Medis QFR software can be installed on standard PCs or laptops and is capable of receiving DICOM images directly from enterprise cath lab systems and PACS for efficient data flow. Exclusive integrations with imaging systems, such as GE IGS, are available to further optimize workflow speed and efficiency within the cath lab environment.
Details
| Category | Cardiology AI, Radiology & Imaging AI |
| Pricing | Contact for quote — N/A |
| Deployment | On-premise / Integrated with cath lab systems |
| Compliance | |
| BAA Available | Unknown AI-estimated |
| HIPAA Compliant | Unknown AI-estimated |
| FDA Status |
1 AI-estimated QFR (3.0) is an X-Ray Angiographic Imaging Based Coronary Vascular Simulation Software Device, cleared by the FDA under 510(k) Premarket Notification K243769. |
| Integrations | |
| EHR | Not specified |
| Specialties | Cardiology |
What the Web Says
QFR, offered by Medis Imaging, is a quantitative flow ratio analysis software designed for coronary artery disease assessment. Reviews from physicians and tech sources highlight its potential to improve diagnostic accuracy and aid in treatment planning, particularly in the cath lab setting. While generally well-received for its innovation, some users point out the learning curve and integration challenges.
Overall: PositiveStrengths
- Non-invasive physiological assessment of coronary arteries
- Aids in decision-making for revascularization
- Potentially reduces need for pressure wires (FFR)
- Provides objective quantitative data
- Integration with existing angiography systems
- Improved diagnostic accuracy for CAD
Limitations
- Steep learning curve for new users
- Requires high-quality angiographic images for accurate analysis
- Potential for inter-observer variability in image selection
- Integration challenges with diverse hospital IT systems
- Cost of software and associated training
- Limited long-term outcome data compared to traditional FFR
Based on reviews from: Medis Imaging Website, Cardiology Journals/Research Papers, Healthcare IT Review Sites (e.g., G2, Capterra - limited specific reviews found for QFR), Physician Forums/Discussions (e.g., Reddit - limited specific discussions found for QFR), Medical Device Review Platforms
Last updated: 2026-07-21
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