TABLE 3.

The optimal radiomic features selected by the SVM-RFE method.

Gray level co-occurrence matrix (GLCM) (n = 13)

Gray level run-length matrix (GLRLM) (n = 6)

Correlation all direction offset4 SD; GLCM Entropy angle45 offset2; Inertia all direction offset3; Haralick Correlation angle45 offset1; Inverse difference moment angle0 offset5; Inertia angle0 offset2; Cluster prominence all direction offset1 SD; Inverse difference moment angle135 offset1; GLCM Energy angle135 offset3; Correlation angle0 offset1; Inverse difference moment angle135 offset9; Inverse difference moment all direction offset7 SD; Correlation angle135 offset5; Cluster prominence angle135 offset2

Run length non-uniformity angle0 offset1; Low gray level run emphasis angle90 offset3; Long run low gray level emphasis angle45 offset6; Long run low gray level emphasis all direction offset5; Run length non-uniformity all direction offset5; High gray level run emphasis angle0 offset8