Table 2.
Pre- and post-intervention coronary angiography and intravascular ultrasound measurements
| Direct stenting | Predilatation stenting | |||||
| Pre-intervention | Post-intervention | p Value | Pre-intervention | Post-intervention | p Value | |
| QCA | ||||||
| Proximal reference diameter (mm) | 3.25 (0.5) | 3.3 (0.47) | 0.37 | 2.98 (0.49) | 3.11 (0.46) | 0.42 |
| Minimum lumen diameter (mm) | 1.02 (0.39) | 3.19 (0.4) | <0.0001 | 0.96 (0.38)* | 2.96 (5.4) | <0.0001 |
| Diameter stenosis (%) | 68.5 (12.2) | 3.3 (5.9) | <0.0001 | 74.43 (11.97) | 4.8 (4.2) | <0.0001 |
| IVUS | ||||||
| Lumen volume (mm3) | 126.9 (46.9) | 187.1 (49.1) | <0.0001 | 111.1 (44.5) | 169.5 (52.1) | <0.0001 |
| EEM volume (mm3) | 304.0 (97.7) | 342.8 (101.4) | <0.0001 | 296.8 (104.7) | 337.4 (115.2) | <0.0001 |
| P+M volume (mm3) | 177.0 (59.1) | 155.7 (59.7) | <0.0001 | 185.7 (74.5) | 167.9 (70.8) | <0.0001 |
Values are mean (SD).
*NS v preintervention direct stenting minimum lumen diameter.
EEM, external elastic membrane; IVUS, intravascular ultrasound; P+M, plaque plus media; QCA, quantitative coronary angiography.