Table 3.
Lesion Characteristics of Coronary Artery, Pre- and Post-Procedural QCA Results in Groups 1–4
| Group 1 (n=125) |
Group 2 (n=102) |
Group 3 (n=395) |
Group 4 (n=384) |
P value | |
|---|---|---|---|---|---|
| Lesion characteristics | |||||
| RCA/LAD/LCx/LMT (%) | 40/44/10/5.6 | 28/41/24/6.9 | 39/42/14/5.1 | 31/46/19/4.4 | |
| ACC/AHA type B2+C (%) | 60 | 47 | 58 | 52 | 0.178 |
| 3 vessel disease (%) | 12 | 22 | 18 | 23 | 0.057 |
| Severe calcification (%) | 8 | 12 | 11 | 14 | 0.179 |
| BMS/DES/POBA/DCB (%) | 38/52/8.8/0.8 | 24/68/6.9/2.0 | 35/54/10/0.3 | 22/68/8.6/1.6 | |
| 1st/2nd/3rd generation DES (%) | 55/36/9.8 | 48/45/7.3 | 57/36/7.0 | 44/45/11 | |
| QCA result | |||||
| Pre-procedural QCA result | |||||
| Lesion length (mm) | 18.6±10.7 | 15.8±7.7 | 18.6±11.5 | 17.5±10.1 | 0.225 |
| Lesion reference (mm) | 2.65±0.54 | 2.64±0.62 | 2.51±0.61 | 2.54±0.58 | 0.127 |
| Lesion MLD (mm) | 0.77±0.51 | 0.69±0.48 | 0.63±0.43 | 0.77±0.47 | 0.003 |
| Lesion %DS (%) | 71 | 74 | 75 | 70 | 0.010 |
| Post-procedural QCA result | |||||
| Lesion MLD (mm) | 2.1±0.5 | 1.9±0.5 | 1.8±0.6 | 1.9±0.5 | 0.024 |
| Lesion %DS (%) | 27 | 28 | 28 | 30 | 0.423 |
| Stent length (mm) | 23.7±12.6 | 22.7±10.7 | 24.6±12.1 | 23.4±11.9 | 0.608 |
| Stent reference (mm) | 3.0±0.5 | 2.9±0.6 | 2.8±0.6 | 2.9±0.5 | 0.062 |
| Stent MLD (mm) | 2.6±0.6 | 2.5±0.5 | 2.4±0.6 | 2.5±0.5 | 0.048 |
| Stent %DS (%) | 13.8 | 12.2 | 14.4 | 15 | 0.249 |
| IVUS | |||||
| N | 91 | 76 | 265 | 258 | |
| Minimum stent CSA (mm) | 6.2±3.1 | 7.5±6.9 | 6.2±2.4 | 5.9±2.5 | 0.042 |
%DS, percent diameter stenosis; ACC, American College of Cardiology; AHA, American Heart Association; BMS, bare-metal stent; CSA, cross-sectional area; DCB, drug-coated ballon; DES, drug-eluting stent; IVUS, intravascular ultrasound; LAD, left anterior descending coronary artery; LCx, left circumflex branch; LMT, left main trunk; MLD, minimum lumen diameter; POBA, plain old balloon angioplasty; QCA, quantitative coronary angiography; RCA, right coronary artery.