Characteristics of plaques with and without a new ulceration at 2-year follow-upa
| New Ulceration Absent (n = 67) | New Ulceration Present (n = 6) | P Value | |
|---|---|---|---|
| NASCET (%) | 16 (0–34) | 11 (0–34) | .95 |
| ECST (%) | 57 (47–68) | 62 (53–71) | .45 |
| Minimal diameter (mm) | 3.8 (2.8–4.6) | 3.4 (2.9–4.8) | .80 |
| Total vessel volume (cm3) | 1.49 (1.2–1.75) | 1.61 (1.53–1.87) | .17 |
| Lumen volume (cm3) | 0.54 (0.44–0.77) | 0.59 (0.55–0.69) | .43 |
| Wall volume (cm3) | 0.86 (0.73–1.00) | 1.04 (0.97–1.16) | .029 |
| % Wall volume | 60 (52–67) | 64 (59–67) | .37 |
| LRNC presence | 41 (61%) | 6 (100%) | .08 |
| % LRNC volume | 2 (0–14) | 23 (13–31) | .002 |
| IPH presence | 21 (31%) | 6 (100%) | .002 |
| % IPH volume | 0 (0–5) | 14 (8–24) | <.001 |
| Calcifications presence MR imaging | 63 (94%) | 6 (100%) | 1.00 |
| % Calcifications volume MR imaging | 5 (3–8) | 6 (2–9) | .79 |
| Calcifications presence MDCTA | 60 (90%) | 5 (83%) | .52 |
| Calcifications, absolute volume MDCTA (mm3) | 32.0 (7.0–100.3) | 1.9 (0.8–91.3) | .15 |
| Thin-or-ruptured FC | 28 (42%) | 6 (100%) | .009 |
Note:—FC indicates fibrous cap.
↵a Data are median (IQR) or No. (%).