Table 2 The quantitative results from the pre- and post-shunt NPH groups for both the aqueduct and cistern
|  | Area (mm2) | Caudal max velocity (cm/s) | Cranial max velocity (cm/s) | Caudal mean flow (mL/min) | Cranial mean flow (mL/min) | SV (μL) |
|---|---|---|---|---|---|---|
Aqueduct | ||||||
 Pre-shunt (n = 9) | 8.2 [3.3]* (5.1–16.4) | 12.5 [9.7] (5.3–21.4) | 9.5 [5.6] (4.5–13.0) | 0.42 [0.33]** (0.12–0.70) | 0.31 [0.23]** (0.09–0.46) | 144.6 [127.6]** (37.1–249.6) |
 Post-shunt (n = 9) | 7.8 [4.3] (3.1–9.0) | 10.9 [4.5] (8.4–15.0) | 6.6 [2.6] (5.4–11.9) | 0.19 [0.17] (0.10–0.36) | 0.15 [0.13] (0.09–0.39) | 76.8 [55.1] (39.4–177.6) |
Cistern | ||||||
 Pre-shunt (n = 6) | 58.0 [80.1] (45.2–255.7) | 5.4 [4.1] (2.7–9.9) | 4.7 [2.1] (3.0–9.3) | 0.83 [0.30] (0.45–1.11) | 0.41 [0.31] (0.29–0.89) | 297.4 [99.4] (188.3–486.5) |
 Post-shunt (n = 6) | 54.3 [78.7] (36.6–161.1) | 5.1 [4.8] (1.9–11.9) | 4.7 [5.2] (1.9–14.0) | 0.82 [0.64] (0.2–1.29) | 0.46 [0.41] (0.15–0.97) | 346.5 [309.3] (99.3–576.0) |