Perfusion abnormalities assessed by SPECT imaging in patients with severe (group A) and mild (group B) worsening of regional function during dobutamine stress echocardiography
| Perfusion variables | Group A (n = 37) | Group B (n = 110) | p Value |
|---|---|---|---|
| Number of stress perfusion defects | 3.8 (1.5) | 2.8 (1.5) | 0.0009 |
| Number of rest perfusion defects | 3.0 (2.0) | 2.0 (1.6) | 0.001 |
| Number of reversible perfusion defects | 1.4 (1.3) | 1.5 (1.4) | 0.8 |
| Stress defect score | 8.5 (4.6) | 6.8 (4.1) | 0.05 |
| Rest defect score | 5.5 (3.8) | 3.9 (3.3) | 0.01 |
| Reversible defect score | 3.0 (2.5) | 2.9 (2.7) | 0.9 |
| Regional defect score (rest)2-150 | 1.40 (0.9) | 1.01 (0.8) | 0.04 |
| Regional defect score (stress)2-150 | 2.41 (1.3) | 2.03 (1.5) | 0.03 |
| Regional defect score (ischaemia)2-150 | 1.01 (0.8) | 1.02 (0.7) | 0.9 |
Values are mean (SD). Data are derived using a 6 segment/4 grade score model.
↵2-150 Data derived on segmental basis in myocardial regions with ischaemia at echocardiography matched with the corresponding regions at SPECT using the 6 segment model.