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. 2023 Feb 25;15(2):e35467. doi: 10.7759/cureus.35467

Figure 6. Comparison of the marginal doses of 2 mm inside the gross tumor volume.

Figure 6

The images show the GTV - 2 mm D98% (%) relative to 100% of the PD (A, B); the BWPs along with the results of FT and SPHT (A); and the scatter plots (B).

(A) FT proved a significant difference among the three groups (P < 0.001 ***, KCC = 1.000). (B) The GTV - 2 mm D98% values are significantly correlated with the GTV diameter in the EIH plan (P = 0.003 **, rho = -0.929), RH plan (P = 0.003 **, rho = -0.929), while not in the IH plan (P = 0.052, rho = -0.750).

EIH, extremely inhomogeneous; IH, inhomogeneous; RH, rather homogeneous; BWP, box-and-whisker plot; FT, Friedman’s test; SPHT, Scheffe’s post hoc test; PD, prescribed dose; GTV, gross tumor volume; KCC, Kendall’s coefficient of concordance