Per–Vascular Territory Analysis of Accuracy of MBF, CFR, and Coronary Vascular Resistance (CVR)
| 82Rb | 13N-ammonia | |||||
|---|---|---|---|---|---|---|
| Parameter | LAD | LOX | RCA | LAD | LOX | RCA |
| MBF at rest | 0.80 ± 0.13 | 0.82 ± 0.18 | 0.88 ± 0.18 | 0.61 ± 0.14 | 0.62 ± 0.18 | 0.60 ± 0.16 |
| MBF at rest, corrected | 0.90 ± 0.24 | 0.91 ± 0.25 | 0.98 ± 0.25 | 0.78 ± 0.22 | 0.81 ± 0.29 | 0.77 ± 0.22 |
| Peak MBF during stress | 1.70 ± 0.37 | 1.66 ± 0.36 | 1.82 ± 0.50 | 1.97 ± 0.33 | 1.89 ± 0.29 | 1.90 ± 0.30 |
| CFR | 2.01 ± 0.69 | 1.93 ± 0.65 | 1.97 ± 0.76 | 2.66 ± 0.72 | 2.55 ± 0.77 | 2.60 ± 0.64 |
| CVR at rest | 105.88 ± 48.38 | 103.95 ± 45.80 | 97.22 ± 44.38 | 102.88 ± 34.05 | 100.28 ± 36.87 | 106.92 ± 37.14 |
| Peak CVR during stress | 52.29 ± 20.88 | 52.86 ± 18.61 | 49.74 ± 19.86 | 40.48 ± 2.92 | 43.01 ± 5.17 | 42.41 ± 5.49 |
Data are reported as mean ± SD. MBF is reported in mL/g/min. CFR is calculated as peak MBF during stress/MBF at rest. CVR is calculated as mean arterial blood pressure/MBF and reported in mm Hg/mL/g/min.