Final answer:
FFR of ______ supports percutaneous coronary intervention (PCI).
Step-by-step explanation:
FFR stands for Fractional Flow Reserve. It is a technique used in interventional cardiology to measure the severity of narrowing in a coronary artery. FFR helps determine the need for percutaneous coronary intervention (PCI), which is a procedure to open blocked or narrowed arteries in the heart.
During FFR measurement, a wire with a pressure sensor is threaded into the coronary artery to measure blood pressure and flow. By comparing the pressure in the narrow segment with the pressure in the normal segment, doctors can determine whether the narrowing is significant enough to require PCI.
For example, if the FFR value is less than 0.80, it indicates a significant blockage and supports the need for PCI. Conversely, if the FFR value is above 0.80, it suggests that the blockage may not require immediate intervention.