Table 3:

Interobserver agreement among readers 1, 2, and 3 for each set of images according to the area considered

CTMRI
2D FLAIR3D FLAIR2D T2*3D SWI3D DIR
Total
    R1 vs R2 (95% CI)1 (1–1)0.85 (0.77–0.93)0.79 (0.69–0.89)0.84 (0.76–0.91)0.79 (0.72–0.87)0.94 (0.91–0.97)
    R1 vs R3 (95% CI)0.94 (0.85–1)0.68 (0.57–0.79)0.65 (0.53–0.76)0.74 (0.65–0.83)0.64 (0.55–0.73)0.90 (0.87–0.93)
    R2 vs R3 (95% CI)0.94 (0.85–1.02)0.70 (0.60–0.81)0.70 (0.59–0.80)0.72 (0.63–0.81)0.73 (0.65–0.81)0.93 (0.91–0.96)
Subarachnoid
    Interhemispheric
        R1 vs R2 (95% CI)1 (1–1)0.91 (0.74–1)0.83 (0.60–1)0.76 (0.54–0.98)0.68 (0.44–0.92)1 (1–1)
        R1 vs R3 (95% CI)1 (1–1)0.83 (0.60–1.06)0.76 (0.50–1.02)0.87 (0.70–1.05)0.44 (0.11–0.77)1 (1–1)
        R2 vs R3 (95% CI)1 (1–1)0.91 (0.74–1.08)0.76 (0.50–1.02)0.77 (0.56–0.99)0.63 (0.39–0.88)1 (1–1)
    Sylvian fissures
        R1 vs R2 (95% CI)1 (1–1)1 (1–1)1 (1–1)0.94 (0.83–1)0.82 (0.63–1)0.95 (0.88–1)
        R1 vs R3 (95% CI)1 (1–1)0.88 (0.66–1.11)1 (1–1)1 (1–1)0.59 (0.31–0.86)0.90 (0.81–1)
        R2 vs R3 (95% CI)1 (1–1)0.88 (0.66–1.11)1 (1–1)0.94 (0.83–1.06)0.73 (0.50–0.96)0.95 (0.89–1.02)
    Convexity
        R1 vs R2 (95% CI)1 (1–1)0.83 (0.68–0.98)0.56 (0.27–0.84)0.73 (0.57–0.89)0.63 (0.43–0.84)0.90 (0.85–0.95)
        R1 vs R3 (95% CI)0.83 (0.60–1.07)0.61 (0.42–0.81)0.48 (0.23–0.73)0.60 (0.42–0.78)0.63 (0.44–0.83)0.87 (0.81–0.92)
        R2 vs R3 (95% CI)0.83 (0.60–1.07)0.60 (0.40–0.79)0.56 (0.33–0.80)0.56 (0.37–0.74)0.70 (0.55–0.86)0.90 (0.85–0.95)
    Basal cisterns
        R1 vs R2 (95% CI)1 (1–1)0.33 (−0.33–0.98)0.70 (0.41–0.99)0.74 (0.39–1)0.64 (0.36–0.92)0.94 (0.88–1)
        R1 vs R3 (95% CI)1 (1–1)0.43 (−0.07–0.92)0.25 (−0.20–0.70)0.45 (−0.01–0.98)0.25 (−0.13–0.62)0.89 (0.82–0.97)
        R2 vs R3 (95% CI)1 (1–1)0.39 (−0.29–1.07)0.30 (−0.17–0.77)0.74 (0.39–1.10)0.41 (0.09–0.73)0.95 (0.90–1)
Intraventricular
    R1 vs R2 (95% CI)1 (1–1)1 (1–1)1 (1–1)1 (1–1)0.95 (0.85–1)1 (1–1)
    R1 vs R3 (95% CI)1 (1–1)0 (−1.12–1.12)0 (−1.95–1.95)0.66 (0.19–1.13)0.86 (0.70–1.02)0 (−1.38–1.38)
    R2 vs R3 (95% CI)1 (1–1)0 (−1.12–1.12)0 (−-1.95–1.95)0.66 (0.19–1.13)0.82 (0.64–1)0 (−1.38–1.38)
  • Note:—R1–R3 indicate readers 1–3; Total, all the subarachnoid and ventricular areas; Convexity, bilateral frontal, parietal, temporal, and occipital convexity areas; Basal cisterns, perimesencephalic and prepontine cisterns and cisterna magna.