Table 4 The correlation between dosimetric differences and the geometric metrics
Site | Structure | Dosimetric differences | Geometric metrics | Correlation analysis |
|---|---|---|---|---|
Rectal | Bladder | ΔV40 (%) | DICE | R = -0.01, p = 0.95 |
MDA | R = 0.17, p = 0.46 | |||
Jaccard | R = -0.01, p = 0.95 | |||
HD | R = 0.13, p = 0.60 | |||
ΔDmean (cGy) | DICE | R = -0.14, p = 0.55 | ||
MDA | R = 0.06, p = 0.81 | |||
Jaccard | R = -0.14, p = 0.55 | |||
HD | R = 0.13, p = 0.59 | |||
Femoral heads | ΔDmean (cGy) | DICE | R = -0.16, p = 0.34 | |
MDA | R = 0.28, p = 0.08 | |||
Jaccard | R = -0.16, p = 0.34 | |||
HD | R = 0.40, p = 0.01 | |||
NPC | Eyes | ΔDmax (cGy) | DICE | R = 0.27, p = 0.09 |
MDA | R = 0.16, p = 0.32 | |||
Jaccard | R = 0.27, p = 0.09 | |||
HD | R = 0.20, p = 0.22 | |||
Spinal cord | ΔDmax (cGy) | DICE | R = 0.08, p = 0.74 | |
MDA | R = -0.21, p = 0.37 | |||
Jaccard | R = 0.08, p = 0.74 | |||
HD | R = -0.15, p = 0.51 | |||
Brainstem | ΔDmax (cGy) | DICE | R = 0.68, p = 0.00 | |
MDA | R = -0.28, p = 0.24 | |||
Jaccard | R = 0.68, p = 0.00 | |||
HD | R = -0.12, p = 0.63 | |||
Parotids | ΔV30 (%) | DICE | R = 0.02, p = 0.90 | |
MDA | R = 0.05, p = 0.76 | |||
Jaccard | R = 0.02, p = 0.90 | |||
HD | R = -0.15, p = 0.35 | |||
ΔDmean (cGy) | DICE | R = -0.16, p = 0.33 | ||
MDA | R = 0.19, p = 0.23 | |||
Jaccard | R = -0.16, p = 0.33 | |||
HD | R = 0.06, p = 0.70 | |||
Lens | ΔDmax (cGy) | DICE | R = 0.14, p = 0.39 | |
MDA | R = -0.14, p = 0.37 | |||
Jaccard | R = 0.14, p = 0.39 | |||
HD | R = -0.10, p = 0.56 | |||
Optic nerves | ΔDmax (cGy) | DICE | R = -0.19, p = 0.23 | |
MDA | R = 0.06, p = 0.69 | |||
Jaccard | R = -0.19, p = 0.23 | |||
HD | R = -0.01, p = 0.96 | |||
Temporal lobes | ΔDmax (cGy) | DICE | R = -0.16, p = 0.34 | |
MDA | R = 0.14, p = 0.38 | |||
Jaccard | R = -0.16, p = 0.34 | |||
HD | R = -0.04, p = 0.80 | |||
Oral cavity | ΔDmean (cGy) | DICE | R = -0.33, p = 0.16 | |
MDA | R = 0.30, p = 0.20 | |||
Jaccard | R = -0.33, p = 0.16 | |||
HD | R = 0.13, p = 0.59 | |||
Larynx | ΔDmean (cGy) | DICE | R = -0.24, p = 0.30 | |
MDA | R = 0.31, p = 0.18 | |||
Jaccard | R = -0.24, p = 0.30 | |||
HD | R = 0.24, p = 0.31 |