Table 2.
Vessel wall morphology of arterial segments with ICAD and concurrent intimal (or medial) calcification and arterial segments with non-calcified atherosclerotic plaques.
| ICAD with calcification | |||
|---|---|---|---|
| Change in vessel wall | ICAD with intimal calcification | ICAD with medial calcification | *Non-calcified plaque |
| Total | 79 | 40 | 40 |
| Vessel stenosis | |||
| Total stenotic segments | 59 (74.7%) | 19 (47.5%) | 18 (45.0%) |
| Mild-to-moderate stenosis | 35 (44.3%) | 14 (35.0%) | 13 (32.5%) |
| Mild | 22 (27.8%) | 8 (20.0%) | 9 (22.5%) |
| Moderate | 13 (16.5%) | 6 (15.0%) | 4 (10.0%) |
| Severe stenosis and signal void | 24 (30.4%) | 5 (12.5%) | 5 (12.5%) |
| Severe | 12 (15.2%) | 3 (7.5%) | 3 (7.5%) |
| Signal void | 12 (15.2%) | 2 (5.0%) | 2 (5.0%) |
| Plaque burden | 0.718 ± 0.104 | 0.644 ± 0.122 | 0.656 ± 0.104 |
| Plaque morphology | |||
| Concentric plaque | 26 (32.9%) | 22 (55.0%) | 23 (57.5%) |
| Eccentric plaque | 53 (67.1%) | 18 (45.0%) | 17 (42.5%) |
| Intraplaque hemorrhage | 28 (35.4%) | 3 (7.5%) | 6 (15.0%) |
*
Non-calcified plaques were identified via vessel-wall MRI (vwMRI) among 70 major artery segments from 10 patients without intracranial arterial calcifications on brain CT.