Prognostic Value of ¹⁸F-FDG PET-CT in Nasopharyngeal Carcinoma: Is Dynamic Scanning Helpful?

Figure 2

Agreement between static PET-CT and dynamic PET-CT with different thresholds in the estimation of primary tumor volumes; (a) PET volume with the threshold of 40% SUVmax () versus PET volume with the threshold of 35% max (), (b) versus PET volume with the threshold of 37% max (), (c) versus PET volume with the threshold of 40% max (), and (d) versus PET volume with the threshold of 50% max (). The mean of the two volumes compared is plotted against the difference, and the middle line in the figures is the mean of the differences, whereas the upper and lower lines represent the 95% confidence intervals (mean ± 1.96 × SD).

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