Table 2

IVUS Results After PCI

OFDI-Guided (n = 54)IVUS-Guided (n = 49)p Value
In-stent segment
 Length, mm22.8 (17.7–26.7)20.3 (16.5–33.5)0.50
 Lumen volume, mm3137.3 (106.8–184.6)159.0 (120.2–209.5)0.27
 Lumen volume index, mm3/mm6.45 (4.69–7.77)6.65 (5.67–8.19)0.21
 Minimum lumen area, mm25.42 (4.07–6.21)5.53 (4.23–7.24)0.23
 Stent volume, mm3137.3 (108.6–184.8)159.3 (119.3–212.9)0.29
 Stent volume index, mm3/mm6.42 (4.69–7.77)6.67 (5.67–8.07)0.21
 Minimum stent area, mm25.52 (3.96–6.21)5.53 (4.23–7.24)0.27
 Persistent plaque volume, mm3169.5 (121.9–216.6)161.5 (107.1–220.9)0.73
 Persistent plaque volume index, mm3/mm7.68 (5.25–9.61)6.85 (5.23–9.42)0.72
 Percent persistent plaque volume, %52.8 (48.8–57.3)50.4 (45.4–55.4)0.15
 Vessel volume, mm3292.8 (238.4–378.3)302.3 (230.5–423.8)0.95
 Vessel volume index, mm3/mm14.5 (10.3–16.7)13.5 (10.9–17.4)0.81
 Tissue protrusion volume, mm30.00 (0.00–0.16)0.00 (0.00–0.27)0.66
 Tissue protrusion volume index, mm3/mm0.00 (0.00–0.01)0.00 (0.00–0.01)0.57
Proximal reference segment
 Length, mm5.00 (5.00–5.00)5.00 (5.00–5.00)0.79
 Lumen volume, mm334.5 (29.8–41.5)39.6 (30.8–47.1)0.12
 Lumen volume index, mm3/mm6.91 (6.00–8.30)7.93 (6.17–9.96)0.12
 Minimum lumen area, mm25.74 (4.50–7.13)6.45 (4.99–8.18)0.18
 Plaque volume, mm337.5 (29.9–50.6)39.6 (31.0–44.1)0.74
 Plaque volume index, mm3/mm7.70 (6.04–10.13)8.01 (6.19–8.83)0.85
 Percent plaque volume, %52.0 (44.2–59.1)48.7 (42.5–55.2)0.31
 Residual stent-edge plaque burden >50%20 (50.0)14 (38.9)0.36
 Vessel volume, mm372.1 (60.3–93.9)75.5 (62.6–88.8)0.66
 Vessel volume index, mm3/mm14.4 (12.3–18.8)15.1 (12.5–18.6)0.63
 Calcification26 (57.8)21 (50)0.52
 Dissection3 (6.7)2 (4.8)0.48
 Dissection with hematoma0 (0.0)1 (2.4)0.46
Distal reference segment
 Length, mm5.00 (5.00–5.00)5.00 (5.00–5.00)0.77
 Lumen volume, mm328.1 (21.6–35.0)29.1 (22.3–40.7)0.55
 Lumen volume index, mm3/mm6.06 (4.59–7.05)5.92 (4.84–8.14)0.68
 Minimum lumen area, mm25.22 (3.64–6.39)4.91 (3.77–6.67)0.81
 Plaque volume, mm321.9 (12.7–33.8)19.0 (8.6–33.1)0.36
 Plaque volume index, mm3/mm4.39 (2.54–6.81)3.97 (1.73–6.61)0.33
 Percent plaque volume, %43.4 (27.9–52.5)35.9 (27.4–46.9)0.31
 Residual stent-edge plaque burden >50%13 (32.5)6 (16.7)0.18
 Vessel volume, mm351.4 (37.8–67.0)46.2 (31.2–71.5)0.42
 Vessel volume index, mm3/mm10.3 (8.1–14.2)9.7 (6.6–14.3)0.41
 Calcification18 (38.3)13 (32.5)0.66
 Dissection3 (6.4)3 (7.5)0.58
 Dissection with hematoma0 (0.0)1 (2.5)0.46

Values are median (interquartile range) or n (%).

Abbreviations as in Table 1.