Table 2 Stepwise regression analysis: determinants of the zero flow pressure in treated and reference vessel.
| F to enter | ||
|---|---|---|
| Treated vessel | Reference vessel | |
| LVEDP | 54.203 | 48.536 |
| CFR | 12.035 | 5.238 |
| Diastolic flow velocity (hyperaemia*) | 3.807 | 0.332 |
| Diastolic BP (hyperaemia) | 3.767 | 0.308 |
| Heart rate (hyperaemia) | 3.539 | 0.657 |
| hAPV | 3.478 | 0.324 |
| Mean BP (hyperaemia*) | 2.136 | 0.957 |
| Systolic BP (hyperaemia) | 2.054 | 2.306 |
| Maximal flow velocity (hyperaemia) | 0.736 | 0.516 |
| Mean BP (hyperaemia) | 0.122 | 0.957 |
BP, blood pressure; CFR, coronary flow reserve; hAPV, hyperaemic average peak velocity; LVEDP, left ventricular end‐diastolic pressure.
* Interval for the construction of the diastolic pressure–flow relationship.