Baseline traits and volumetric differences among PVH scores on MRI in patients achieving complete reperfusion after mechanical thrombectomy (n = 126)
| PVH 0 | PVH 1 | PVH 2 | PVH 3 | P Value | |
|---|---|---|---|---|---|
| Age (mean) (SD) (yr) | 59.0 (16.7) | 68.0 (12.2) | 76.6 (7.7) | 72.9 (15.3) | <.001 |
| Baseline NIHSS score (median) (IQR) | 16 (11–19) | 16 (11–20) | 18 (8–20) | 17 (13–21) | .921 |
| Time from symptom onset to CTP study (median) (IQR) (min) | 154 (89–233) | 168 (92–296) | 135 (64–263) | 185 (73–385) | .871 |
| CBF (median) (IQR) (mL/100 g/min) | 2.4 (2.2–2.7) | 2.4 (2.1–2.6) | 2.5 (2.2–2.7) | 2.4 (2.2–2.8) | .558 |
| CBV (median) (IQR) (mL/100 g/min) | 25.4 (22.9–28.1) | 23.9 (21.0–26.1) | 23.1 (19.4–26.9) | 22.6 (18.0–28.0) | .205 |
| MTT (median) (IQR) (sec) | 5.7 (5.3–6.3) | 6.0 (5.4–6.3) | 6.2 (5.8–6.7) | 6.4 (6.3–7.1) | .021 |
| Collateral status (median) (IQR) | 2 (2–3) | 2 (2–3) | 2 (2–3) | 2 (1–2) | .174 |
| NVT (median) (IQR) (mL) | 15.4 (7.3–32.0) | 16.0 (7.8–36.3) | 15.4 (3.5–31.4) | 23.1 (15.1–33.9) | .411 |
| FIV (median) (IQR) (mL) | 15.0 (3.5–32.4) | 12.8 (5.3–19.8) | 14.3 (2.8–40.0) | 13.6 (1.3–25.8) | .826 |
| Volumetric biasa (median) (IQR) (mL) using Fazekas score on MRI | 4.2 (−18.5–9.8) | 1.6 (−3.1–16.4) | 0.0 (−18.7–16.0) | 12.5 (0.9–30.4) | .205 |
| Volumetric biasa (median) (IQR) (mL) using Fazekas score on NCCT | 2.6 (−12.1–11.6) | 2.3 (−3.5–13.2) | 0.5 (−18.7–14.5) | 11.4 (−1.1–31.4) | .557 |
↵a Volumetric bias was defined as NVT (using the rCBF <30% cutoff)-FIV.