Table 1 Haemodynamic parameters and Myocardial Blood Flow (ml/g/min), measured at rest, peak cold pressor test (CPT) and adenosine stress
From: Measurement of myocardial blood flow response to the cold pressor test with myocardial perfusion CMR
| Â | REST | P value | CPT | P value | ADENOSINE |
|---|---|---|---|---|---|
Heart Rate (bpm) | 70 ±9 | 0.001 | 84 ±12 | 0.02 | 97 ±12 |
Systolic Blood Pressure (mmHg) | 120 ±10 | 0.025 | 132 ±16 | 0.002 | 114 ±14 |
Diastolic Blood Pressure (mmHg) | 66 ±7 | 0.001 | 78 ±9 | <0.001 | 60 ±9 |
Mean Arterial Pressure (mmHg) | 84 ±6 | 0.022 | 94 ±15 | <0.001 | 78 ±10 |
Rate Pressure Product (mmHg/min) | 8441 ±1198 | <0.001 | 11157 ±2018 | 0.972 | 11184 ±2031 |
Coronary Vascular Resistance (mmHg/ml min g) | 60.5 ±14.8 | 0.01 | 43.9 ±15.4 | <0.001 | 18.5 ±4.2 |
Myocardial Blood Flow (ml/g/min) | 1.48 ±0.15 | 0.004 | 2.31 ±0.18 | <0.001 | 4.36 ±0.25 |
Endocardial Blood Flow (ml/g/min) | 1.7 ±0.6 | NA | 2.38 ±0.5 | NA | 4.09 ±0.7 |
Epicardial Blood Flow (ml/g/min) | 1.38 ±0.5 | NA | 2.09 ±0.7 | NA | 4.53 ±1.1 |