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Table 3 Gray-scale IVUS findings (n = 61)

From: Association of culprit lesion plaque characteristics with flow restoration post-fibrinolysis in ST-segment elevation myocardial infarction: an intravascular ultrasound-virtual histology study

Variables TIMI flow 3 (n = 30) TIMI flow 1–2 (n = 31) p value
IVUS lesion length (mm) 28.95 (19.40–39.62) 25.20 (19.70–31.90) 0.299
Proximal reference
 Lumen CSA (mm2) 8.65 (7.68–9.89) 9.86 (6.86–11.50) 0.328
 EEM CSA (mm2) 13.21 (12.03–15.76) 15.65 (11.68–18.31) 0.124
 Plaque burden (%) 33.28 (27.37–38.11) 36.11 (28.37–38.74) 0.585
Distal reference
 Lumen CSA (mm2) 5.95 ± 1.93 5.36 ± 1.65 0.212
 EEM CSA (mm2) 9.21 (6.13–11.49) 8.48 (6.43–11.56) 0.828
 Plaque burden (%) 31.40 (26.93–37.27) 36.92 (33–39.91) 0.027
 Average/Mean Lumen CSA (mm2) 7.32 (6.39–8.80) 7.30 (5.60–8.59) 0.725
 Average/Mean EEM CSA (mm2) 10.95 (9.61–13.31) 12.36 (8.87–14.93) 0.213
Lesion measurements
 Lesion minimum luminal diameter (mm) 1.56 (1.5–1.63) 1.57 (1.51–1.68) 0.436
 Lesion maximum luminal diameter (mm) 2.0 (1.82–2.22) 2.06 (1.82–2.25) 0.670
 Lesion Lumen CSA (mm2) 2.43 (2.15–2.71) 2.45 (2.11–2.87) 0.363
 Lesion EEM CSA (mm2) 13.91 ± 2.94 15.71 ± 3.73 0.041
 Lesion (P + M) CSA (mm2) 11.45 ± 2.85 13.13 ± 3.66 0.050
 Lesion lumen area stenosis (%) 67.30 (60.39–71.18) 66.14 (55.12–71.57) 0.658
 Lesion plaque burden (%) 81.65 (79.98–84.01) 82.42 (80.68–85.77) 0.306
 Plaque volume (mm3) 94.3 (72.22–120.22) 108.3 (94.10–120.20) 0.194
 Remodeling index 1.21 (1.06–1.42) 1.22 (1.03–1.50) 0.946
  1. Data are presented as mean ± SD, median (interquartile range), or n (%)
  2. IVUS intravascular ultrasound, EEM CSA external elastic membrane cross-sectional area, P + M plaque plus media