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. 2018 Jul 4;34(4):819–829. doi: 10.3904/kjim.2017.378

Table 3.

Optical coherence tomography and intravascular ultrasonography analysis of coronary lesions at the 9-month follow-up

Two-way ANOVA Type of treatment
 Imaging modality
 p interaction
DEB + BMS (n = 28) DES (n = 28) p value OCT (n = 16) IVUS (n = 40) p value
Neointimal thickness, μm 125.99 ± 107.69 68.73 ± 91.16 0.025 138.26 ± 128.59 81.00 ± 87.41 0.042
Neointimal hyperplasia area, mm2 1.02 ± 0.99 0.46 ± 0.69 0.011 1.02 ± 1.29 0.63 ± 0.66 0.103 0.006
Neointimal hyperplasia volume, mm3 20.30 ± 24.15 11.28 ± 18.75 0.105 20.93 ± 31.60 13.74 ± 16.65 0.240 0.011
Volume obstruction, % 14.90 ± 15.36 7.03 ± 11.39 0.025 14.91 ± 18.96 9.38 ± 11.32 0.150 0.014
Mean lumen area, mm2
 Post 7.36 ± 2.29 6.79 ± 2.05 0.334 7.67 ± 1.90 6.84 ± 2.25 0.195
 9-Month follow-up 6.53 ± 2.45 6.59 ± 2.22 0.918 6.43 ± 2.18 6.61 ± 2.40 0.785
 Post-9-month follow-up 0.83 ± 1.11 0.20 ± 0.81 0.009 1.24 ± 1.15 0.22 ± 0.79 < 0.001
Minimum lumen area, mm2
 Post 6.09 ± 2.16 5.56 ± 1.89 0.337 6.25 ± 1.56 5.66 ± 2.18 0.329
 9-Month follow-up 5.21 ± 2.32 5.42 ± 2.08 0.706 5.03 ± 2.00 5.43 ± 2.27 0.533
 Post-9-month follow-up 0.89 ± 1.35 0.14 ± 0.93 0.013 1.22 ± 1.39 0.23 ± 1.01 0.003
Lumen volume, mm3
 Post 126.95 ± 50.17 154.63 ± 66.89 0.804 156.63 ± 61.61 134.45 ± 59.25 0.208
 9-Month follow-up 116.00 ± 55.38 153.74 ± 73.45 0.034 129.06 ± 60.76 137.19 ± 70.22 0.677
 Post-9-month follow-up 10.95 ± 35.93 0.89 ± 41.48 0.308 27.57 ± 28.70 –2.74 ± 39.18 0.007
Mean stent area, mm2
 Post 7.47 ± 2.34 6.70 ± 1.98 0.191 7.14 ± 1.84 6.95 ± 2.31 0.482
 9-Month follow-up 7.53 ± 2.46 6.98 ± 2.06 0.374 7.45 ± 1.89 7.17 ± 2.42 0.687
 Post-9-month follow-up –0.06 ± 0.33 –0.28 ± 0.32 0.012 –0.04 ± 0.33 –0.22 ± 0.34 0.060
Minimum stent area, mm2
 Post 6.28 ± 2.22 5.52 ± 1.80 0.170 6.12 ± 1.53 5.81 ± 2.22 0.605
 9-Month follow-up 6.48 ± 2.27 5.85 ± 1.92 0.277 6.23 ± 1.69 6.14 ± 2.27 0.885
 Post-9-month follow-up –0.20 ± 0.45 –0.33 ± 0.48 0.275 –0.11 ± 0.61 –0.33 ± 0.61 0.104
Stent volume, mm3
 Post 135.74 ± 51.95 159.70 ± 65.61 0.139 150.81 ± 58.96 146.49 ± 60.92 0.807
 9-Month follow-up 139.66 ± 64.05 167.18 ± 73.60 0.145 149.99 ± 66.35 154.79 ± 71.85 0.817
 Post-9-month follow-up –3.92 ± 22.55 –7.48 ± 32.66 0.636 0.82 ± 22.07 –8.31 ± 29.72 0.276

Values are presented as mean ± SD.

ANOVA, analysis of variance; DEB, drug-eluting balloon; BMS, bare metal stent; DES, drug-eluting stent; OCT, optical coherence tomography; IVUS, intravascular ultrasonography.