Table 3

Matched OCT results

Matched OCT resultsBaselineFollow-upDifferenceP value
Mean lumen area (mm2)
 6 months6.8 (1.7)5.7 (1.4)1.1 (−1.3;−0.9)<0.0001
 9 months7.2 (1.6)5.6 (1.4)1.6 (−1.7;−1.4)<0.0001
Minimal lumen area (mm2)
 6 months5.3 (1.4)4.3 (1.3)1.0 (−1.3;−0.7)<0.0001
 9 months5.7 (1.4)4.1 (1.3)1.6 (−1.9;−1.4)<0.0001
Mean scaffold area (mm2)
 6 months7.1 (1.5)7.2 (1.4)0.1 (−0.02;0.24)0.12
 9 months7.4 (1.5)7.3 (1.4)−0.1 (−0.19;0.02)0.12
 9 months7.4 (1.5)7.3 (1.4)−0.1 (−0.19;0.02)0.13
Minimal scaffold area (mm2)
 6 months5.9 (1.3)6.0 (1.3)0.1 (−0.02;0.25)0.08
 9 months6.1 (1.4)6.1 (1.3)−0.1 (−0.24;0.10)0.40
Mean extra scaffold lumen area (mm2)*
 6 months0.05 (0.02;0.13)0.00 (0.00;0.02)0.04 (−0.11;−0.02)<0.0001
 9 months0.09 (0.04;0.19)0.00 (0.00;0.02)0.08 (-1.16;−0.03)<0.0001
Mean neointimal area (mm2)*
 6 months1.2 (1.0;1.4)
 9 months1.4 (1.1;1.7)
Mean neointimal thickness (mm)*
 6 months0.057 (0.040;0.077)
 9 months0.072 (0.056;0.101)
Total analysed struts (N)
 6 months20 69620 233
 9 months23 77522 875
Mean strut count per analysis N (SD)
 6 months283 (56)277 (57)
 9 months301 (62)290 (62)
Malapposed struts (%)†
 6 months0.8 (0.0;3.5)0.0 (0.0;0.0)−0.7 (−3.5;0)<0.0001
 9 months1.8 (0.3;6.0)0.0 (0.0;0.0)−1.5 (−5.1;−0.3)<0.0001
Covered struts (%)†
 6 months98.1 (95.9;99.4)
 9 months98.9 (98.3;100.0)
 Discontinued struts N (%)‡2 (2.7)4 (5.5)2.7 (−2.4;7.9)0.16
 6 months5 (6.3)16 (20.3)13.9 (2.9;24.9)0.01
 9 months5 (6.3)16 (20.3)13.9 (2.9;24.9)0.01
Thrombus N (%)‡
 6 months48 (65.8)2 (2.7)
 9 months43 (54.4)2 (2.5)
  • Matched data from the 73 patients in Cohort A and 79 patients in Cohort B. Results are mean (SD).

  • *Median (interquartile).

  • †Analysed on strut level, reported as median (IQR).

  • ‡Analysed on patient level.

  • OCT, optical coherence tomography.