Fig. 2.

Radiomics workflow of model construction. a MR images segmentation. First, the tumour was segmented manually on the sagittal image, and then ITK-SNAP was used for 3D volume reconstruction. b Radiomic feature extraction. According to the segmentation image, a total of 106 radiomics parameters of 3 types were extracted from each set of images. c Radiomic Feature selection. After the preprocessing of Wavelet Filtering and Laplacian of Gaussian, the characteristic parameters were selected and classified by decision-making tree. d Model establishment. The diagnostic efficacy of the radiomics model was evaluated by ROC analysis