Research Article
Coronary Atherosclerotic Plaque Vulnerability Rather than Stenosis Predisposes to Non-ST Elevation Acute Coronary Syndromes
Table 3
Intravascular ultrasound criteria of SA and NSTE-ACS groups.
| | IVUS criteria | NSTE-ACS group | Stable angina group | value |
| | Vessel area (EEM CSA) (mm2) | 9.86 ± 3.8 | 11.36 ± 2.9 | 0.001 | | Max. vessel diameter (mm) | 3.76 ± 0.71 | 4 ± 0.53 | 0.01 | | Min. vessel diameter (mm) | 3.23 ± 0.66 | 3.5 ± 0.51 | 0.01 | | Lesion MLA (mm2) | 4.69 ± 2.58 | 3.58 ± 1.23 | 0.001 | | Lesion max. diameter (mm) | 2.54 ± 0.62 | 2.26 ± 0.45 | 0.001 | | Lesion min. diameter (mm) | 2.05 ± 0.50 | 1.80 ± 0.38 | 0.001 | | Area stenosis (%) | 54.7 ± 14.9 | 68.6 ± 8.7 | 0.001 | | Plaque plus media (mm2) | 5.3 ± 2.54 | 7.7 ± 2.48 | 0.001 | | Plaque burden | 54.4 ± 14.7 | 67.8 ± 9.8 | 0.001 | | Lesion length (mm) | 17.53 ± 7.3 | 18.02 ± 9.6 | 0.68 | | Proximal reference area (mm2) | 11.19 ± 3.8 | 12.83 ± 3.35 | 0.05 | | Proximal max. RVD (mm) | 4.19 ± 0.47 | 4.24 ± 0.55 | 0.69 | | Proximal min. RVD (mm) | 3.79 ± 0.52 | 3.72 ± 0.62 | 0.58 | | Distal reference area (mm2) | 9.03 ± 3.5 | 8.79 ± 2.9 | 0.65 | | Distal max. RVD (mm) | 3.46 ± 0.54 | 3.63 ± 0.62 | 0.19 | | Distal min. RVD (mm) | 3.09 ± 0.56 | 3.30 ± 0.56 | 0.09 | | Mean reference area (mm2) | 9.94 ± 3.5 | 11.33 ± 3.08 | 0.01 | | Remodeling index | 0.95 ± 20 | 1.02 ± 0.14 | 0.008 |
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EEM: external elastic membrane; CSA: cross-sectional area; MLA: minimal lumen area; RVD: reference vessel diameter.
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