Figure 1. Scattergram of diastolic left anterior descending coronary artery (LAD) velocity before and after dobutamine stress echocardiography (DSE).
| Cardiology Research, ISSN 1923-2829 print, 1923-2837 online, Open Access |
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Original Article
Volume 2, Number 4, August 2011, pages 174-180
Coronary Flow Reserve of the Non-Ischemia Related Coronary Artery During Dobutamine Stress Echocardiography
Figures
Tables
| VD (cm/sec) | TVID (cm) | Diastolic Flow (mL/min) | Systolic Flow (mL/min) | Total Flow (mL/min) | ||
|---|---|---|---|---|---|---|
| Value: mean ± SD. SD: standard deviation. | ||||||
| All subjects (n = 69) | Rest | 28.5 ± 13.6 | 9 ± 3.8 | 36.5 ± 23.8 | 11.6 ± 12.2 | 47.6 ± 34.8 |
| DSE | 52.4 ± 23.7 | 10.5 ± 4.7 | 75.75 ± 48.7 | 23.8 ± 22.7 | 99.8 ± 68.2 | |
| P-value | 9.5 × 10-11 | 0.04 | 1.21×10-7 | 0.000242 | 4.58 × 10-7 | |
| With WMA (n = 41) | Rest | 33 ± 18 | 10 ±4.8 | 41 ± 29.7 | 12.6 ± 15 | 53.6 ± 43 |
| DSE | 56.7 ± 29 | 11 ±5.8 | 75.1 ± 55 | 24.4 ± 22.7 | 99.5 ± 74 | |
| P-value | 0.0008 | 0.47 | 0.009 | 0.035 | 0.01 | |
| Without WMA (n = 28) | Rest | 25.5 ± 8.6 | 8.23 ±2.9 | 33.5 ± 18.7 | 11 ± 10 | 43.6 ± 28.4 |
| DSE | 49.5 ± 19.2 | 10.1 ±3.9 | 76 ± 44.7 | 23.88 ± 23.3 | 100 ± 65.3 | |
| P-value | 1.17 × 10-9 | 0.015 | 1.72 × 10-6 | 0.00289 | 1.05 × 10-5 | |
| CFR VD | CFR VS | CFR TVID | CFR TVIS | CFR Diastolic Flow | CFR Systolic Flow | CFR Total Flow | |
|---|---|---|---|---|---|---|---|
| Value: mean ± SD. SD: standard deviation. | |||||||
| All subjects | 2.08 ± 0.7 | 2.04 ± 1.5 | 1.23 ± 0.4 | 1.45 ± 1.09 | 2.6 ± 2.8 | 2.9 ± 3.3 | 2.57 ± 2.79 |
| With Ischemia | 1.77 ± 0.56 | 1.4 ± 0.56 | 1.13 ± 0.3 | 1.48 ± 1.35 | 1.88 ± 0.57 | 2.6 ± 2.4 | 1.97 ± 0.66 |
| Without Ischemia | 2.4 ± 0.7 | 2.45 ± 1.78 | 1.3 ± 0.55 | 1.4 ± 0.89 | 3.3 ± 3.7 | 3.13 ± 3.7 | 2.98 ± 3.5 |
| P- value | 0.0008 | 0.001 | 0.12 | 0.84 | 0.045 | 0.5 | 0.09 |