DTI images of the postoperative HGG patient before radiotherapy. (i). DTI images for a 59-year-old male patient who had left temporal lobe glioma (WHO Grade III). Fiber tract disruption and absence outside the surgical cavity. (ii). DTI images for a 64-year-old female patient who had right thalamic glioma (WHO Grade III). The fiber tract was continuous and complete, considering that tumor invasion is not obvious.