Medical Specialties > Interventional Cardiology > Coronary Interventions > PCI Product Portfolio > Coronary Physiology
Measure FFR, DFR™ & Pd/Pa in Coronary Physiology
- Fractional Flow Reserve (FFR) calculates Pd/Pa during maximal hyperemia.
- Diastolic hyperemia-Free Ratio™ (DFR™) calculates a diastolic portion of the cardiac cycle at rest.
- Pd/Pa calculates the entire cardiac cycle at rest.
FFR |
DFR |
Pd/Pa |
|
|---|---|---|---|
Type |
Whole-cycle |
Diastolic |
Whole-cycle |
Cutoff |
0.80 |
0.89 |
0.91 |
No Hyperemic Agent Required |
X |
✔ |
✔ |
Inclusion in Appropriate Use Criteria* |
✔ |
✔ |
✔ |
Workhorse Pressure Guidewire Available |
✔ |
✔ |
✔ |
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