Table 3.
Stent characteristics and peri-stent PVAT performance between the two groups.
| Parameters |
Non-ISR group (n= 65) |
ISR group (n = 52) |
P -value |
|---|---|---|---|
| Location of stents | 0.347 | ||
| LAD (%) | 40(61.5%) | 33(63.5%) | - |
| LCx (%) | 9(13.8%) | 11(21.2%) | - |
| RCA (%) | 16(24.6%) | 8(15.4%) | - |
| segments of stents | 0.610 | ||
| Proximal (%) | 26(40.0%) | 25(48.1%) | - |
| Middle (%) | 36(55.4%) | 24(46.2%) | - |
| Distal (%) | 3(4.6%) | 3(5.8%) | - |
| Drug-eluting stent (%) | 58(89.2%) | 43(82.7%) | 0.311 |
| Time period from CCTA to PCI (month) | 37.09 ± 14.70 | 33.85 ± 14.12 | 0.230 |
| Stent length (mm) | 28.0 ± 12.1 | 28.0 ± 9.8 | 1.000 |
| Stent diameter (mm) | 4.2 ± 0.5 | 4.2 ± 0.5 | 0.840 |
| Degree of ISR (%) | 50.3 ± 21.5 | - | - |
| Peri-stent FAI (HU) | −87.2 ± 7.3 | −78.1 ± 6.2 | <0.001*** |
Values are given as mean±SD (range) or n (%), “***” indicate significance at p < 0.001.
LAD, left anterior descending coronary artery; LCx, left circumflex coronary artery; RCA, right coronary artery; ISR, in-stent restenosis; FAI, fat attenuation index.