Fractional Flow Reserve
ZP offers Fractional Flow Reserve (FFR) CT to offer a noninvasive personalized cardiac test to diagnose coronary artery disease (CAD). The combination of our advanced CT technology with FFR allows your doctor to easily detect blockages in your coronary arteries and lower your risk for heart attacks. This test is noninvasive and is performed at the same time as a coronary CT angiogram.
ZP is one of the first radiological practices in the area to offer FFR. Contact our Cardiovascular Imaging team if you have any questions about the procedure.

How Does Fractional Flow Reserve Work?
Using results from your CT scan, FFR creates a personalized, digital 3D model of your coronary arteries, and provides blood flow information. This information was previously only available through an invasive procedure. With trained specialists and powerful computer algorithms, FFR calculates how much coronary artery blockages limit your blood flow. Once the FFR analysis is complete, the results are sent to your physician.
Your doctor will order a Coronary CT scan to detect if blockages are present in the vessels supplying blood to your heart muscle. A Coronary CT scan creates detailed 3D images of the blood vessels in your heart. Patients who are at risk of having blockages in the arteries can benefit from a CT scan, such as those with a family history of heart disease. The Coronary CT scan is faster, less invasive and is a lower risk than an invasive catheterization.
Sometimes, the CT scan provides enough information to determine the next step in the patient’s treatment plan. Other times more information is needed.
If more information is needed after reviewing your CT scan results, you may be a candidate for FFR. Without requiring any additional appointments, this advanced technology helps identify which blockages are limiting blood flow to your heart.

What are the Benefits of FFR?
- Improved Decision-Making: FFR-CT helps determine the functional significance of coronary artery lesions, guiding clinical decisions regarding the need for revascularization or conservative management.
- Non-Invasive Assessment: Integrating FFR with CTA provides a non-invasive method to evaluate coronary artery function, reducing the need for more invasive procedures like catheter-based FFR or coronary angiography.
- Enhanced Diagnostic Accuracy: FFR-CT improves the diagnostic accuracy of coronary CTA by identifying whether a coronary lesion is hemodynamically significant, reducing unnecessary treatments and improving patient outcomes.
- Cost-Effective: By avoiding unnecessary invasive procedures and interventions, FFR-CT can potentially reduce healthcare costs associated with unnecessary stent placements or surgeries.
- Better Risk Stratification: FFR-CT allows for more precise risk assessment, helping to stratify patients more effectively based on the severity of coronary artery disease and the likelihood of adverse cardiovascular events.
- Reduction in Unnecessary Procedures: FFR-CT can help identify patients who do not require invasive procedures, thus reducing the risk of complications associated with unnecessary interventions.
- Personalized Treatment Plans: FFR-CT allows for a tailored approach to treatment, ensuring that interventions like stenting or bypass surgery are reserved for patients with significant ischemia, leading to better patient-specific outcomes.
Read more about Coronary CT Angiography, and what to expect during the procedure.
Why Choose Zwanger Pesiri?
Zwanger-Pesiri Radiology brings world-class expertise to the Long Island community. Our subspecialty-trained radiologists are Board Certified by the American Board of Radiology with fellowship training in a variety of specialties. They are highly-skilled, highly-knowledgeable, and make patient care a priority. To learn more, contact us today.