Comparison between patients with and without infarct related coronary artery occlusion
| Mild stenosis, 50–59% (n=11) | Moderate stenosis, 60–69% (n=21) | Severe stenosis, 70–99% (n=17) | Occluded artery (n=20) | |
| DSE | ||||
| Wall motion score index at rest | 1.29 (0.12) | 1.35 (0.16) | 1.46 (0.13) | 1.47 (0.22) |
| Sustained improvement | 6 (55%) | 0 (0%) | 0 (0%) | 1 (5%) |
| Biphasic response | 1 (9%) | 18 (86%) | 12 (71%) | 6 (30%) |
| Worsening in adjacent area | 0 (0%) | 3 (14%) | 4 (24%) | 10 (50%) |
| Akinesis without change | 4 (36%) | 0 (0%) | 1 (6%) | 3 (15%) |
| Residual ischaemia | 1 (9%) | 21 (100%) | 16 (94%) | 16 (80%) |
| Mibi SPECT, rest | ||||
| Mean severity (%) | 32 (8) | 28 (14) | 38 (11) | 38 (11) |
| Defect surface (%) | 27 (18) | 25 (22) | 42 (23) | 43 (22) |
| Hypoperfusion index (%) | 7 (5) | 9 (11) | 18 (14) | 18 (11) |
| Index difference | 8 (13) | 6 (5) | 4 (3) | 5 (2) |
| Residual ischaemia | 8 (73%) | 17 (81%) | 11 (65%) | 12 (60%) |
Values are mean (SD) or n (%).
DSE, dobutamine stress echocardiography; mibi SPECT,
99mTc sestamibi single photon emission computed tomography.