Dose gradient | Radiomics feature | Total |
|---|
FirstOrder | GLCM | GLDM | GLRLM | GLSZM | NGTDM |
|---|
0–5 Gy | 0 | 1 | 0 | 0 | 0 | 0 | 1 |
5–10 Gy | 10 | 0 | 1 | 1 | 2 | 0 | 14 |
10–15 Gy | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
15–20 Gy | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
20–30 Gy | 16 | 20 | 9 | 9 | 7 | 3 | 64 |
30–40 Gy | 10 | 2 | 2 | 2 | 3 | 0 | 19 |
40–50 Gy | 0 | 2 | 0 | 0 | 0 | 0 | 2 |
- Among these features, first-order skewness was a general feature under dose gradients of 5–10 Gy and 10–15 Gy; the rates of change were − 24.57 and − 29.32%, respectively, and the change showed an upwards trend with increasing dose. There were 16 general features under the gradient 20–30 Gy and 30–40 Gy, among which the features GLRLM-RunEntropy, FirstOrder-Entropy, and GLRLM-GreyLevel-NonUniformityNormalized showed a downwards trend with an increase in the dose. The rates of change of the other features increased with increasing dose (Fig. 3)
