Question

CFR versus FFR may be discordant in what situation?

Answer 1

CFR (Cardiac Flow Reserve) and FFR (Fractional Flow Reserve) may be discordant when assessing the severity of a coronary artery stenosis.

Step-by-step explanation:

CFR (Cardiac Flow Reserve) and FFR (Fractional Flow Reserve) are both measures used to assess the blood flow in the coronary arteries. When a person has a discordant CFR and FFR, it means that the two measures do not agree on the severity of a coronary artery stenosis (narrowing).

For example, a patient may have a normal CFR value indicating good coronary blood flow, but a reduced FFR value suggesting the presence of a significant stenosis. In this situation, the patient may require additional testing or evaluation to determine the best course of treatment.