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. 2021 Apr 22;19:134. doi: 10.1186/s12957-021-02239-w

Fig. 2.

Fig. 2

Workflow of image segmentation and radiomic feature extraction. (I) The left panel shows representative tumor slices. The region of interest was delineated manually slice by slice and then a 3D VOI was generated as shown in the image on the right. (II) Radiomic features were extracted from the VOI including histogram parameters, volume and shape parameters, and texture features