FFR-CT Interpretation

Many patients undergo coronary CT angiography (CTA), either as part of early screening for atherosclerosis or following a referral from a physician or cardiologist. Yet, in some cases, the CTA report does not definitively answer whether there is a significant narrowing in the coronary arteries. Should the patient proceed to invasive catheterization, or can they safely defer it? Virtual FFR-CT interpretation offers a precise and advanced solution to these questions.

What Is Coronary CT Angiography?

  • High-resolution imaging: Coronary CTA utilizes a state-of-the-art CT scanner synchronized with the cardiac cycle to visualize the coronary arteries that supply the heart muscle.
  • Early detection: It identifies early atherosclerotic plaques, calcifications, or stenosis before clinical symptoms arise.
  • Non-invasive, outpatient procedure: Rapid, with no hospitalization or recovery time required. Intravenous contrast may be used to enhance the visualization of vessels and facilitate functional assessment.
  • Decision-making tool: Guides clinical management—whether to continue conservative follow-up, initiate medical therapy, or refer for catheterization. It is a safe, advanced alternative for the initial evaluation of chest pain or coronary heart disease risk.

What Is FFR-CT Interpretation?

FFR-CT (Fractional Flow Reserve from CT) utilizes cutting-edge, AI-driven technology to simulate blood flow within the coronary arteries visualized on CTA and assess whether any stenosis impairs myocardial perfusion. Not every narrowing visible on CTA significantly affects heart function; FFR-CT quantifies the actual physiological impact of a lesion.

Who Is FFR-CT Interpretation For?

  • Symptomatic stable patients with suspected ischemic heart disease—chest pain, exertional dyspnea, or unexplained chronic fatigue.
  • Equivocal CTA findings, when the severity of coronary stenosis on standard imaging is unclear. FFR-CT provides an accurate physiological assessment of the impact of stenosis.
  • High cardiovascular risk patients—diabetes, hypertension, hyperlipidemia, or family history of heart disease—who benefit from precise risk stratification.
  • Patients requiring a decision on invasive catheterization: FFR-CT helps determine whether catheterization is clinically indicated.
  • Multi-vessel disease cases: Identifies which lesions truly require intervention and which can be managed conservatively.

Advantages of FFR-CT After Coronary CTA

  • Definitive clinical information: Accurately assesses whether a stenosis is hemodynamically significant.
  • Avoids unnecessary invasive procedures: Reduces needless catheterizations or stent placements with associated radiation burden when not medically justified.
  • Targeted intervention planning: Pinpoints the exact vascular segment requiring treatment, enabling focused and efficient catheterization when necessary.
  • Improves outcomes: Guides balanced decision-making between medical management and interventional approaches, reducing complications and optimizing patient care.
  • Aligns with modern cardiology standards: FFR-CT is recognized as a leading non-invasive modality in the contemporary assessment of coronary disease.
  • International collaboration. We work in partnership with one of the foremost cardiac centers in the United States Baylor St. Luke’s Medical Center and Texas Heart Institute (Houston) ensuring the highest standards of interpretation and clinical recommendations.

Why Add FFR-CT to Standard CTA Interpretation?

  • Complements anatomical imaging: While CTA shows vessel structure and degree of narrowing, it cannot determine the functional significance of a lesion.
  • Physiological insight: FFR-CT quantifies the downstream impact of stenosis on myocardial blood flow, distinguishing clinically meaningful lesions from those that are benign.
  • Reduces diagnostic uncertainty: Integrating anatomical and physiological data leads to more informed and confident treatment decisions without relying solely on suspicion.
  • Minimizes unnecessary diagnostics: Decreases the need for invasive FFR measurements, sparing patients from procedural risks and radiation.

How Is FFR-CT Interpretation Performed?

  1. Data transfer: Your coronary CTA images are securely uploaded to the RDG-Imaging platform.
  2. AI-driven analysis: Advanced medical AI software simulates cardiac blood flow and generates detailed physiological maps of coronary perfusion.
  3. Expert review: A specialized cardiac radiologist reviews and validates the AI findings.
  4. No invasive catheterization, anesthesia, or hospitalization is required.

How Are FFR-CT Results Delivered?

  • Comprehensive report: Clear, precise determination of whether stenosis require catheterization, with exact lesion location.
  • Clinical Recommendations: Guidance on Conservative Management versus Interventional Referral.
  • Interventional planning: For patients who require catheterization, FFR-CT identifies optimal stent placement sites, thereby enhancing procedural safety and efficiency.

Who Interprets FFR-CT Studies?

At RDG Imaging, we are proud to be the first healthcare service in Israel to offer advanced cardiac CT interpretation using FFR-CT technology. This innovative service is performed by highly experienced radiologists who specialize in cardiac imaging. By combining clinical expertise, advanced technology, and a comprehensive approach to each patient, we provide accurate and personalized care. We believe that medical decisions should be based on clear evidence not just suspicions. That’s why we offer this cutting-edge service to support safer and more precise medicine.

We work in close collaboration with experts from Baylor St. Luke’s Medical Center and the Texas Heart Institute in Houston the leading cardiology centers in the United States. In complex cases, we consult with their specialists to review and discuss challenging findings together.

What this means for our patients:

  • Accurate diagnosis in the most difficult cases, with the benefit of international expertise and a team-based approach
  • Access to second opinions from world-leading specialists without the need to travel abroad
  • The highest standards of quality and medical oversight, following the most advanced practices worldwide

This collaboration reflects our commitment to giving every patient the best possible care, with precise diagnosis and expert guidance.

Our team also includes an in-house cardiologist. Every case is reviewed by a multidisciplinary team of cardiac imaging and radiology experts, including a senior cardiologist. This approach allows us to deliver a clinically sound and evidence-based interpretation from the very first report.

How Is Patient Eligibility Assessed?

We carefully review each case to ensure reliable results. FFR-CT is not recommended for patients with:

  • Prior coronary bypass grafts (CABG)
  • Large fistulas (>1.5 mm)
  • Poor CTA image quality
  • Existing coronary stents, pacemakers, mechanical valves, or uncontrolled arrhythmias

Each referral is evaluated individually by our expert team to confirm suitability.

How to Schedule FFR-CT Interpretation

  1. Create a secure patient account on the RDG Imaging portal.
  2. Upload CTA DICOMs and any relevant clinical documents (referral, summary, labs).
  3. RDG’s initial review confirms eligibility and notifies you when the upload is complete.
  4. Perform Online Payment through instant, secure and comfortable online payment link.
  5. Processing & reporting: Receive your FFR-CT report within 2–5 business days.
  6. To schedule or for assistance, call us at 050-475-1120 or email office@rdg-imaging.com.

Our team is available to guide you through the upload process and answer any questions you may have.

At RDG Imaging, we deliver precise, safe, and reliable cardiac diagnostics—because your patients’ hearts deserve the very best.