Table 2 Overview of the investigated histogram parameters derived from Dynamic-contrast enhanced MRI
Parameters | Mean ± Standard Deviation | Range | Intraclass coefficient (95% Confidence interval) |
|---|---|---|---|
Ktrans (1/min) | |||
Mean | 0.19 ± 0.11 | 0.06–0.53 | 0.97 (0.94–0.97) |
Min | 0.05 ± 0.03 | 0.009–0.13 | 0.97 (0.93–0.98) |
Max | 0.63 ± 0.52 | 0.10–2.92 | 0.98 (0.95–0.99) |
P10 | 0.10 ± 0.06 | 0.04–0.24 | 0.97 (0.93–0.99) |
P25 | 0.13 ± 0.08 | 0.05–0.35 | 0.90 (0.79–0.96) |
P75 | 0.23 ± 0.13 | 0.08–0.63 | 0.98 (0.95–0.99) |
P90 | 0.30 ± 0.17 | 0.08–0.91 | 0.66 (0.35–0.83) |
Median | 0.18 ± 0.10 | 0.07–0.45 | 0.96 (0.95–0.99) |
Mode | 0.15 ± 0.10 | 0.04–0.47 | 0.93 (0.91–0.98) |
Kurtosis | 6.43 ± 6.73 | 2.70–33.70 | 0.98 (0.97–0.99) |
Skewness | 1.12 ± 0.83 | −0.25-3.85 | 0.97 (0.93–0.98) |
Entropy | 3.33 ± 0.51 | 2.10–4.72 | 0.97 (0.94–0.98) |
Kep (1/min) | |||
Mean | 0.40 ± 0.17 | 0.15–0.89 | 0.93 (0.85–0.97) |
Min | 0.09 ± 0.06 | 0.01–0.22 | 0.95 (0.88–0.98) |
Max | 1.04 ± 0.56 | 0.31–2.97 | 0.92 (0.84–0.96) |
P10 | 0.22 ± 0.11 | 0.07–0.58 | 0.95 (0.88–0.98) |
P25 | 0.29 ± 0.13 | 0.10–0.72 | 0.98 (0.95–0.99) |
P75 | 0.49 ± 0.20 | 0.19–1.04 | 0.95 (0.88–0.98) |
P90 | 0.59 ± 0.23 | 0.23–1.19 | 0.97 (0.94–0.98) |
Median | 0.38 ± 0.16 | 0.15–0.89 | 0.96 (0.92–0.98) |
Mode | 0.35 ± 0.16 | 0.14–0.89 | 0.96 (0.91–0.98) |
Kurtosis | 4.61 ± 4.91 | 2.20–26.81 | 0.98 (0.97–0.99) |
Skewness | 0.63 ± 0.61 | −0.04-2.52 | 0.97 (0.92–0.98) |
Entropy | 3.43 ± 0.56 | 2.20–4.38 | 0.96 (0.90–0.98) |
Ve (unitless) | |||
Mean | 0.52 ± 0.18 | 0.16–0.78 | 0.98 (0.95–0.99) |
Min | 0.16 ± 0.10 | 0.03–0.34 | 0.75 (0.50–0.88) |
Max | 0.94 ± 0.15 | 0.44–1.00 | 0.91 (0.81–0.96) |
P10 | 0.31 ± 0.15 | 0.09–0.58 | 0.92 (0.83–0.96) |
P25 | 0.38 ± 0.17 | 0.12–0.70 | 0.96 (0.94–0.98) |
P75 | 0.64 ± 0.21 | 0.19–0.92 | 0.92 (0.94–0.98) |
P90 | 0.77 ± 0.21 | 0.25–0.97 | 0.95 (0.88–0.98) |
Median | 0.49 ± 0.20 | 0.15–0.83 | 0.98 (0.95–0.99) |
Mode | 0.42 ± 0.24 | 0.12–0.98 | 0.98 (0.96–0.99) |
Kurtosis | 3.04 ± 1.14 | 1.89–5.37 | 0.95 (0.89–0.98) |
Skewness | 0.42 ± 0.70 | −1.41-1.55 | 0.95 (0.89–0.98) |
Entropy | 3.29 ± 0.63 | 1.55–4.12 | 0.93 (0.85–0.97) |