Time Point | Contrast | Image Quality | p-value | Vessel Contrast | p-value |
---|---|---|---|---|---|
1. Abduction-early | BPA | 4.58±0.39 | 0.92 | 3.97±0.12 | 0.57 |
 | ECA | 4.50±0.41 |  | 3.92±0.19 |  |
2. Abduction-late | BPA | 4.36±0.38 | 0.06 | 3.97±0.12 | 0.007 |
 | ECA | 4.12±0.30 |  | 3.73±0.26 |  |
3. Adduction-early | BPA | 3.89±0.65 | 0.014 | 3.42±0.52 | <0.001 |
 | ECA | 4.42±0.11 |  | 3.96±0.14 |  |
4. Adduction-late | BPA | 4.17±0.49 | 0.09 | 3.86±0.29 | 0.18 |
 | ECA | 3.77±0.78 |  | 3.62±0.68 |  |