Table 2.
ASL characteristics based on ROI analysis.
| Variable | Total (n= 91) | OIS (n = 30) | DR (n = 39) | HM (n = 22) | p value |
|---|---|---|---|---|---|
| ASL: BF (PLD = 1.5 s) | |||||
| Retinal–choroidal complex, ml/100 g/min, mean (SD) | 14.15 (9.17) | 10.43 (10.88) | 15.52 (8.07) | 16.77 (6.99) | 0.020 |
| Intraorbital segments of optic nerve, ml/100 g/min, mean (SD) | 14.52 (11.62) | 12.29 (9.33) | 11.12 (7.73) | 23.59 (15.36) | < 0.001 |
| Tractus opticus, ml/100 g/min, mean (SD) | 14.27 (8.69) | 13.87 (7.20) | 10.62 (7.13) | 21.28 (9.14) | < 0.001 |
| Visual center, ml/100 g/min, mean (SD) | 16.50 (9.93) | 15.68 (9.91) | 12.87 (7.72) | 24.03 (9.70) | < 0.001 |
| ASL: BF (PLD = 2.5 s) | |||||
| Retinal–choroidal complex, ml/100 g/min, mean (SD) | 16.46 (10.66) | 12.99 (10.95) | 20.29 (11.03) | 14.40 (7.22) | 0.009 |
| Intraorbital segments of optic nerve, ml/100 g/min, mean (SD) | 17.74 (11.77) | 13.15 (9.18) | 19.18 (13.09) | 21.46 (10.91) | 0.024 |
| Tractus opticus, ml/100 g/min, mean (SD) | 22.23 (9.52) | 19.05 (10.10) | 22.48 (9.21) | 26.12 (7.97) | 0.028 |
| Visual center, ml/100 g/min, mean (SD) | 28.40 (8.81) | 24.81 (10.15) | 29.87 (8.09) | 30.67 (6.65) | 0.022 |
ASL, arterial spin labeling; ROI, region of interest; OIS, ocular ischemic syndrome; DR, diabetic retinopathy; HM, high myopia; BF, blood flow; PLD, postlabeling delay; SD, standard deviation.
p-values for comparisons among OIS, DR, and HM.
p < 0.05 was considered statistically significant.