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Parameters of angiographic and functional scans.
| Parameters | Angiographic scan 3D angiography | Functional scan Velocity measurement | |
| μDoppler image | Number of angles | 13 | 5 |
| Angles/step | −12° to 12°/2° | −12° to 12°/6° | |
| Repetition per step | 3 | 3 | |
| Firing frequency | 9,750 Hz | 11,250 Hz | |
| Frame rate | 750 Hz | 750 Hz | |
| Number of images | 300 | 18,000 | |
| Acquisition time | 0.4 s | 24 s | |
| Scan | Volume scanned | Bregma +3.0 to −5.0 mm | Bregma +2.1 to −3.0 mm |
| Imaging step | 150 μm | 300 μm | |
| Number of planes | 80 | 18 |
