Table 2 Procedural characteristics of the study groups
From: IVUS-guided versus OCT-guided PCI among patients presenting with acute coronary syndrome
Total (n = 100) | IVUS (n = 50) | OCT (n = 50) | P value | ||
|---|---|---|---|---|---|
Average stent diameter (mm) | Mean ± SD | 3.3 ± 0.8 | 3.4 ± 1 | 3.2 ± 0.6 | 0.111 |
Average stent length (mm) | Mean ± SD | 27.2 ± 9.2 | 26.3 ± 8.4 | 28.2 ± 9.9 | 0.306 |
Contrast (ml) | Mean ± SD | 168 ± 47 | 164 ± 42 | 172 ± 52 | 0.432 |
Radiation dose (Mgy) | Median (range) | 942 (651–1403) | 1111 (737–1632) | 775 (563–1154) | 0.008 |
Rad time (min) | Mean ± SD | 12 ± 4.3 | 13.3 ± 4.3 | 10.7 ± 3.9 | 0.002 |
No reflow | n (%) | 7 (7.0) | 5 (10) | 2 (4.0) | 0.436 |
Prolapse | n (%) | – | – | 19 (38) | – |
Dissection | n (%) | 8 (8.0) | 5 (10) | 3 (6) | 0.715 |
Expansion (%) | Mean ± SD | 95 ± 6 | 93 ± 5 | 97 ± 7 | 0.001 |
MLA (mm2) | Mean ± SD | 2.42 ± 0.83 | 2.63 ± 0.84 | 2.22 ± 0.77 | 0.013 |
MSA (mm2) | Mean ± SD | 8.49 ± 2.83 | 8.88 ± 2.87 | 8.1 ± 2.76 | 0.169 |
Acute MLA gain (mm2) | Mean ± SD | 6.05 ± 2.48 | 6.26 ± 2.41 | 5.85 ± 2.56 | 0.415 |
ALG % related to ref versus area | Mean ± SD | 63.3 ± 12.6 | 61.3 ± 10 | 65.2 ± 14.6 | 0.117 |
Plaque character | Fibrotic n (%) | – | 12 (24) | – | – |
Calcification n (%) | – | 12 (24) | – | ||
Necrotic n (%) | – | 26 (52) | – | ||
Acute plaque change type | Ruptured n (%) | – | – | 32 (64) | – |
Erosion n (%) | – | – | 16 (32) | ||
SCAD n (%) | – | – | 2 (4) | ||
Type of thrombus | Red n (%) | – | – | 22 (44.9) | – |
White n (%) | – | – | 27 (55.1) |