Table 2.
Absolute values of vessel size (VS) and vessel density index (Q) before normalization to contralateral hemisphere, and markers of cerebral perfusion (including relative cerebral blood flow and cerebral blood volume) on first (v01) and second (v02) MRI in selected regions of interest.
| VS (µm) | Q (s−1/3) | rCBF (%) | rCBV (%) | |
|---|---|---|---|---|
| N = 31 | N = 53 | |||
| v01 MRI | ||||
| Lesion | 55.9 (±15.1) | 0.27 (±0.04) | 61.7 (±20.3) | 71.1 (±19.2) |
| Perilesional | 50.7 (±12.3) | 0.29 (±0.05) | 68.5 (±13.6) | 81.2 (±16.1) |
| Mirrored lesion | 50.0 (±15.9) | 0.30 (±0.06) | 86.9 (±19.2) | 86.2 (±17.1) |
| N = 20 | N = 34 | |||
| v02 MRI | ||||
| Lesion | 55.8 (±19.9) | 0.28 (±0.07) | 54.1 (±15.4) | 66.5 (±17.9) |
| Perilesional | 47.4 (±14.1) | 0.30 (±0.05) | 61.7 (±13.6) | 78.3 (±16.4) |
| Mirrored lesion | 45.2 (±5.7) | 0.31 (±0.03) | 86.0 (±25.7) | 83.0 (±17.5) |
Q=vessel density index, VS=vessel size, CBF=cerebral blood flow, CBV=cerebral blood volume.