Table 3. Quantitative Perfusion Values in Patients With and Without Significant CAD.
| CAD | No CAD | |||||
|---|---|---|---|---|---|---|
| Stenotic Territory | Remote Territory | p Value* | All Territories | p Value† | ||
| Stress perfusion (ml/min/g) | ||||||
| PET | 1.24 ± 0.49 | 1.56 ± 0.66 | <0.0001 | 1.72 ± 0.66 | 0.49 | |
| CMR | 1.54 ± 0.34 | 1.94 ± 0.59 | 0.001 | 2.03 ± 0.63 | 0.68 | |
| Rest perfusion (ml/min/g) | ||||||
| PET | 0.77 ± 0.24 | 0.81 ± 0.25 | 0.08 | 0.85 ± 0.26 | 0.71 | |
| CMR | 1.03 ± 0.30 | 1.06 ± 0.33 | 0.28 | 0.98 ± 0.29 | 0.47 | |
| MPR | ||||||
| PET | 1.57 ± 0.31 | 1.87 ± 0.36 | <0.0001 | 2.06 ± 0.44 | 0.20 | |
| CMR | 1.55 ± 0.36 | 1.90 ± 0.48 | 0.001 | 2.20 ± 0.56 | 0.13 | |
| Mean MPR of 2 lowest segments | ||||||
| PET | 1.36 ± 0.32 | 1.74 ± 0.32 | <0.0001 | 1.92 ± 0.39 | 0.14 | |
| CMR | 1.31 ± 0.30 | 1.70 ± 0.42 | <0.0001 | 1.93 ± 0.53 | 0.16 | |
Values are mean ± SD. A stenotic territory is subtended by a coronary artery with ≥70% diameter stenosis, and a remote territory is subtended by coronary arteries with < 70% stenosis.
†
Significance of the difference between stenotic and remote territory values.
*
Significance of the difference between the values in patients without coronary artery disease (CAD) and remote territories in patients with CAD.
CMR = cardiovascular magnetic resonance; MPR = myocardial perfusion reserve; PET = positron emission tomography.