Rias Ali, MD, FACC — Patient Education

Heart Tests, Procedures & Rehabilitation

FFR & iFR

A thin pressure wire crosses a blockage and reads the flow. A high score means leave it alone; a low score means stent it.

This is a free, plain-language patient education guide written by Rias Ali, MD, FACC, a board-certified interventional cardiologist. Every guide is grounded in current peer-reviewed evidence and major society guidelines, organized in a way patients can actually use during a visit.

Download the FFR & iFR guide

PDF · 212 KB · Updated August 2026

Download PDF Read online

Share or scan: go.riasalimd.com/ffr-guide

What's inside this guide

← Back to the Patient Education Library