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Table 2: 
Average estimated diffusion coefficients derived from monoexponential fitting and diffusional kurtosis analysis in patients with squamous cell carcinoma head and neck cancer (n = 17)
Region (n) ADC_mono D_app K_app ρ (D_appand K_app)
Node (28) 0.84 ± 0.24 1.54 ± 0.45 1.38 ± 0.37 −0.49 ± 0.35
BOT primary (6) 0.67 ± 0.22 1.32 ± 0.35 1.69 ± 0.54 −0.52 ± 0.42
Tonsil primary (7) 0.78 ± 0.20 1.46 ± 0.41 2.91 ± 3.92 −0.54 ± 0.27
NPC primary (2) 1.16 ± 0.19 2.21 ± 0.05 0.92 ± 0.17 −0.21 ± 0.34
Spine (12) 0.74 ± 0.08 1.44 ± 0.29 1.41 ± 0.15 −0.26 ± 0.42

Note:—n indicates number of regions (over all squamous cell carcinoma patients) contributing to the average; ADC_mono, apparent diffusion coefficient obtained from monoexponential fitting (10⁻³ mm²/s); D_app, apparent diffusion coefficient obtained from diffusional kurtosis analysis (10⁻³ mm²/s); K_app, apparent kurtosis coefficient obtained from diffusional kurtosis analysis (dimensionless); ρ (D_appand K_app), Spearman rank-order correlation coefficient for correlation between K_app and D_app. Averages are presented as mean ± SD