Table 2.
Procedural characteristics compared between the angiographic and intravascular imaging guidance groups.
| Characteristics | Angiographic guidance | Imaging guidance (IVUS+OCT) | p |
|---|---|---|---|
| (n = 77) | (n = 188) | ||
| Target vessel | |||
| LM | 2 (2.6%) | 6 (3.2%) | 1.000 |
| LAD | 46 (59.7%) | 140 (74.5%) | 0.017 |
| LCX | 9 (11.7%) | 18 (9.6%) | 0.606 |
| RCA | 22 (28.6%) | 39 (20.7%) | 0.169 |
| Diameter of stenosis (%) | 83.31 ± 0.4 | 83.29 ± 0.7 | 0.991 |
| CTO lesion | 6 (7.8%) | 12 (6.4%) | 0.679 |
| No. of burrs | 1.070 ± 0.31 | 1.210 ± 0.42 | 0.005 |
| Maximum burr size (mm) | 1.50 (1.25-1.50) | 1.50 (1.50-1.75) | 0.001 |
| QCA findings | |||
| Before stenting | |||
| Reference lumen diameter (mm) | 2.610 ± 0.52 | 2.570 ± 0.61 | 0.603 |
| Minimum lumen diameter (mm) | 0.540 ± 0.34 | 0.510 ± 0.35 | 0.557 |
| Diameter stenosis (%) | 79.21 ± 2.4 | 80.41 ± 2.4 | 0.502 |
| Lesion length (mm) | 34.491 ± 7.35 | 37.291 ± 5.53 | 0.231 |
| After stenting | |||
| Reference lumen diameter (mm) | 2.670 ± 0.48 | 2.740 ± 0.51 | 0.311 |
| Minimum lumen diameter (mm) | 2.320 ± 0.40 | 2.420 ± 0.44 | 0.104 |
| Diameter stenosis (%) | 12.68 ± 0.4 | 11.27 ± 0.9 | 0.218 |
| Acute gain (mm) | 1.770 ± 0.46 | 1.910 ± 0.46 | 0.039 |
| Stent length (mm) | 33.0 (22.0–49.0) | 38.0 (30.0–53.7) | 0.004 |
| Maximum stent diameter (mm) | 2.75 (2.50–3.50) | 3.00 (3.00–3.50) | <0.001 |
| Drug-eluting stent (DES) type | |||
| Everolimus-eluting (Xience Prime, Xience ProX) | 25 (32.5%) | 50 (26.6%) | 0.335 |
| Zotarolimus-eluting (Resolute Integrity, Resolute Onyx) | 18 (23.4%) | 34 (18.1%) | 0.325 |
| Sirolimus-eluting (Orsiro, Firehawk, Ultimaster) | 3 (3.9%) | 41 (21.8%) | <0.001 |
| Biolimus-eluting (BioMatrix Alpha, BioFreedom) | 29 (37.7%) | 52 (27.7%) | 0.109 |
| DES more than 1 type | 2 (2.6%) | 11 (5.9%) | 0.358 |
| Maximum balloon size (mm) | 2.75 (2.50–3.00) | 3.00 (2.75–3.50) | <0.001 |
| Radiation dose (mGy) | 3,335 (2,307–4,473) | 2,727 (1,936–3,912) | 0.025 |
| Contrast volume (ml) | 170 (140–200) | 169 (130–217) | 0.818 |
| Procedural success (%) | 76 (98.7%) | 188 (100%) | 0.291 |
Data presented as frequency and percentage, mean ± standard deviation, or median (IQR).
A p < 0.05 indicates statistical significance (Bold).
IVUS, intravascular ultrasound; OCT, optical coherence tomography; LM, left main; LAD, left anterior descending; LCX, left circumflex; RCA, right coronary artery; CTO, chronic total occlusion; QCA, quantitative coronary angiography; DES, drug-eluting stent.