Table 3.
Carotid vessel imaging characteristics by OSA category
| Total sample (n = 46) | AHI < 15 (n = 35) | AHI ≥ 15 (n = 11) | p-value | |
|---|---|---|---|---|
|
| ||||
| Carotid arteries | ||||
| Avg. TBRmean (SD) | 1.44 (0.19) | 1.44 (0.20) | 1.43 (0.19) | 0.86 |
| Avg. TBRmax (SD) | 1.70 (0.24) | 1.69 (0.24) | 1.71 (0.24) | 0.77 |
| Avg. Wall area (SD) mm2 | 33.70 (6.03) | 33.05 (6.09) | 35.96 (5.51) | 0.18 |
| Avg. Total vessel area (SD) mm2 | 62.36 (11.18) | 61.54 (11.56) | 65.25 (9.72) | 0.36 |
| Avg. Carotid wall thickness (SD) mm | 1.43 (0.16) | 1.41 (0.15) | 1.51 (0.16) | 0.10 |
OSA obstructive sleep apnea, TBR target-to-background ratio, SD standard deviation