Application of Dynamic ¹⁸F-FDG PET/CT for Distinguishing Intrapulmonary Metastases from Synchronous Multiple Primary Lung Cancer

Figure 3

sMPLC vs. IPM: absolute differences of or and ROC curve analysis. (a, b) was more sensitive than in identifying sMPLC. Data are shown as median with interquartile range. Mann–Whitney test, , ns = not significant. (c, d) Correlation between and in the sMPLC and IPM groups. (c) There was no correlation (Pearson , ) between and in the sMPLC group. (d) There was a good correlation (Pearson , 95% CI: 0.79-0.96, ) between and in the IPM group. (e) ROC curve (, low diagnostic value) for . (f) ROC curve (, moderate diagnostic value) for . For the optimal cut-off value of with a sensitivity of 79% and specificity of 75%, the corresponding false-positive and false-negative rate was 25% and 21%.

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(b)

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