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Fig. 4 | Radiation Oncology

Fig. 4

From: A novel dosimetric metrics-based risk model to predict local recurrence in nasopharyngeal carcinoma patients treated with intensity-modulated radiation therapy

Fig. 4

Kaplan–Meier survival analysis, and time-dependent ROC curve of HI. a Kaplan–Meier analysis estimated LRFS of patients according to the median value of HI#; b Kaplan–Meier analysis estimated LRFS of patients according to the median value of HI*; c Comparison of predictive power between HI# and the risk model; d ROC curve of HI# was plotted for 1-, 3-, and 5-year LRFS. HI, homogeneity index; HI# was defined as D5/D95; HI* was defined as (D2-D98)/D50

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