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. Author manuscript; available in PMC: 2023 Nov 24.
Published in final edited form as: Neuroimage. 2019 Apr 11;196:161–172. doi: 10.1016/j.neuroimage.2019.04.034

Fig. 6. Quantitative dynamic correlation characteristics.

Fig. 6.

(A) The mean correlation strengths and (B) edge numbers of functional and [18F]FDG-PET correlations were calculated for the bolus injection and constant infusion cohorts at three 40-min time intervals (bolus injection cohort: 0–40 min, 10–50 min, and 20–60 min; constant infusion cohort: 20–60 min, 30–70 min, and 40–80 min). (C) Intraclass correlations were calculated to describe within-scan consistency between functional and [18F]FDG-PET correlation matrices obtained for the three mentioned time intervals. Intraclass correlations are interpreted as r < 0.40: poor correlation, 0.40 ≤ r < 0.59: fair correlation, 0.60 ≤ r < 0.75: good correlation, and r ≥ 0.75: excellent correlation. The error bars represent standard deviations. Bolus injection cohort (N = 15); constant infusion cohort (N = 11). *** represents p-values < 0.001.