Table 3.
In vivo quantitative measurement by OFDI and IVUS at baseline, 4, and 12 weeks
| Baseline | 4 weeks | 12 weeks | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Total number of stents: | 34 | 17 | 13 | ||||||
| Coronary artery (LAD/LCx/RCA): | 12/11/11 | 7/3/7 | 5/4/4 | ||||||
| OFDI | IVUS | P value | OFDI | IVUS | P value | OFDI | IVUS | P value | |
| Mean LD (mm) | 2.65 ± 0.26 | 2.51 ± 0.24 | <0.001 | 2.31 ± 0.42 | 2.30 ± 0.35 | 0.96 | 1.86 ± 0.34 | 1.94 ± 0.32 | 0.002 |
| Minimum lumen area (mm2) | 5.15 ± 0.96 | 4.73 ± 0.95 | <0.001 | 3.29 ± 1.30 | 3.86 ± 1.15 | 0.001 | 2.25 ± 0.87 | 2.48 ± 0.82 | 0.001 |
| Lumen VI (mm3/mm) | 5.50 ± 1.11 | 4.95 ± 0.99 | <0.001 | 4.27 ± 1.46 | 4.22 ± 1.26 | 0.49 | 2.76 ± 0.93 | 3.00 ± 0.96 | 0.002 |
| Minimum stent area, tracing at LE (mm2) | 4.63 ± 0.89 | 4.73 ± 0.95 | 0.02 | 5.05 ± 1.21 | 4.81 ± 1.09 | 0.002 | 4.69 ± 0.83 | 4.83 ± 0.86 | 0.03 |
| Minimum stent area, tracing at HIP (mm2) | 4.92 ± 0.94 | 4.73 ± 0.95 | <0.001 | 5.34 ± 1.27 | 4.81 ± 1.09 | <0.001 | 4.98 ± 0.87 | 4.83 ± 0.86 | 0.03 |
| Stent VI, tracing at LE (mm3/mm) | 4.82 ± 0.92 | 4.95 ± 0.99 | <0.001 | 5.20 ± 1.21 | 4.95 ± 1.15 | <0.001 | 4.87 ± 0.89 | 4.98 ± 0.92 | 0.08 |
| Stent VI, tracing at HIP (mm3/mm) | 5.07 ± 0.96 | 4.95 ± 0.99 | 0.001 | 5.49 ± 1.27 | 4.95 ± 1.15 | <0.001 | 5.16 ± 0.93 | 4.98 ± 0.92 | 0.01 |
| Neointimal VI, tracing at LE (mm3/mm) | N/A | N/A | N/A | 0.93 ± 0.45 | 0.73 ± 0.32 | 0.002 | 2.11 ± 0.55 | 1.98 ± 0.63 | 0.01 |
| Neointimal VI, tracing at HIP (mm3/mm) | N/A | N/A | N/A | 1.22 ± 0.43 | 0.73 ± 0.32 | <0.001 | 2.40 ± 0.58 | 1.98 ± 0.63 | <0.001 |
HIP highest intensity points, IVUS intravascular ultrasound, LAD left anterior descending artery, LCx left circumflex artery, LD lumen diameter, LE leading edge, OFDI optical frequency domain imaging, RCA right coronary artery, VI volume index