Effect of postdilation on stent dimensions assessed by FD-OCT and IVUS (N=6)
| IVUS | FD-OCT | |||||
|---|---|---|---|---|---|---|
| Pre | Post | p Value | Pre | Post | p Value | |
| In-stent diameter, mm | ||||||
| Minimum | 2.55±0.42 | 2.70±0.50 | 0.057 | 2.60±0.41 | 2.82±0.34 | 0.036 |
| Maximum | 4.43±0.63 | 4.77±0.85 | 0.152 | 3.84±0.48 | 4.25±0.65 | 0.031 |
| In-stent area, mm2 | ||||||
| Minimum | 7.73±2.20 | 7.95±2.72 | 0.551 | 7.30±1.62 | 8.15±1.90 | 0.023 |
| Maximum | 13.02±3.41 | 14.77±5.45 | 0.184 | 10.72±2.55 | 13.00±3.62 | 0.040 |
| Percentage of stent malapposed (%) | 7±7 | 7±4 | 0.984 | 34±12 | 19±10 | 0.004 |
FD-OCT, frequency domain optical coherence tomography; IVUS, intravascular ultrasound.