Physiological measurements, including hyperemic (FFR) and non-hyperemic pressure ratios (NHPR), Index of Microcirculatory Resistance (IMR), and Coronary Flow Reserve (CFR) are used to assess for epicardial disease and microvascular dysfunction. Physiologic data from PressureWire™ X Guidewire leads to informed decision-making that is proven to improve patient outcomes and prevent unnecessary, repeat hospitalizations.1
View how PressureWire™ X Guidewire measures Fractional Flow Reserve (FFR), Resting Full-cycle Ratio (RFR), Index of Microcirculatory Resistance (IMR) and Coronary Flow Reserve (CFR).
|Diagnosing Epicardial Stenosis||Diagnosing Coronary Microvascular Dysfunction|
|Guidelines||ACC/SCAI (view here)||ESC Guideline 2019 (view here)|
AHA/ACC Guidelines (view here)
|Cutoff Value||≤ 0.82||≤ 0.893||≥ 251,*||< 2.51,*|
|Formula||Pd/Pa at hyperemia||Lowest Pd/Pa ratio of whole-cycle||Pd x Hyperemic Flow||Hyperemic Flow/Baseline Flow|
*IMR and CFR cutoffs in population of ischemia with no obstructive coronary artery disease (INOCA) patients, CorMicA trial.1
RFR is recognized by the Appropriate Use Criteria with an approved coding recommendation by ACC/SCAI.
You are about to enter an Abbott country- or region-specific website.
Please be aware that the website you have requested is intended for the residents of a particular country or countries, as noted on that site. As a result, the site may contain information on pharmaceuticals, medical devices and other products or uses of those products that are not approved in other countries or regions
Do you wish to continue and enter this website?