Clinical Study
Optical Coherence Tomography Analysis of Attenuated Plaques Detected by Intravascular Ultrasound in Patients with Acute Coronary Syndromes
Table 2
Intravascular ultrasound findings.
| | Attenuated plaque | Nonattenuated plaque | P value | | () | () |
| Minimum lumen area site | | | | EEM area, mm2 | 12.4 ± 5.0 | 10.1 ± 4.4 | 0.016 | Lumen area, mm2 | 2.5 ± 1.0 | 2.6 ± 1.0 | 0.676 | P&M CSA, mm2 | 9.9 ± 4.6 | 7.5 ± 4.0 | 0.006 | Plaque burden, % | 78 ± 10 | 73 ± 9 | 0.022 | Positive remodeling, % | 22 (54) | 19 (30) | 0.017 |
| Proximal reference site | | | | EEM area, mm2 | 12.5 ± 5.3 | 10.9 ± 4.4 | 0.112 | Lumen area, mm2 | 8.6 ± 3.7 | 7.4 ± 3.3 | 0.117 | P&M area, mm2 | 3.9 ± 1.9 | 3.5 ± 1.3 | 0.170 | Plaque burden, % | 31 ± 6 | 32 ± 6 | 0.500 |
| Distal reference site | | | | EEM area, mm2 | 11.4 ± 5.4 | 9.9 ± 4.4 | 0.123 | Lumen area, mm2 | 8.1 ± 3.8 | 7.0 ± 3.3 | 0.133 | P&M CSA, mm2 | 3.4 ± 1.7 | 2.9 ± 1.3 | 0.144 | Plaque burden, % | 29 ± 5 | 29 ± 5 | 0.974 |
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Values are given as mean ± standard deviation. EEM: external elastic membrane; CSA: cross-sectional area; P&M: plaque and media.
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