Table 4:
Wall characteristics of symptomatic atherosclerotic MCA stenosis
| Variablesa | NR Group (n = 19) | PR Group (n = 25) | P Value |
|---|---|---|---|
| At reference site | |||
| Vessel area (mm2) | 15.5 (3.3) | 14.3 (3.2) | .228 |
| Luminal area (mm2) | 5.5 (1.6) | 5.2 (1.9) | .516 |
| Wall area (mm2) | 10.0 (1.8) | 9.1 (1.6) | .103 |
| Maximal wall thickness (mm) | 1.0 (0.1) | 0.9 (0.1) | .058 |
| At MLN site | |||
| Vessel area (mm2) | 12.4 (3.3) | 17.8 (4.5) | <.0001 |
| Luminal area (mm2) | 0.8 (0.6) | 0.8 (0.5) | 0.804 |
| Wall area (mm2) | 11.6 (3.3) | 16.9 (4.3) | <.0001 |
| Plaque size (mm2) | 1.6 (2.3) | 7.8 (3.8) | <.0001 |
| Percentage of plaque burden (%) | 9.9 (16.8) | 42.0 (11.1) | <.0001 |
| Degree of stenosis (%) | 84.5 (13.8) | 81.5 (14.6) | .497 |
| Maximal wall thickness (mm) | 2.1 (0.5) | 2.8 (0.5) | <.0001 |
| Minimal wall thickness, (mm) | 0.9 (0.3) | 1.0 (0.2) | .381 |
| Eccentricity index | 0.5 (0.2) | 0.6 (0.1) | .023 |
| Remodeling index | 0.8 (0.1) | 1.3 (0.3) | <.0001 |
a
Variables are expressed as mean and SD.