Effects of the MR-DTI Characteristics of the Trigeminal Ganglion Target on Radiofrequency Treatment in Patients with Trigeminal Neuralgia: A Retrospective Observational Clinical Study

Figure 6

Characteristics of the TGTs in the coronal view of FA maps. The TGTs were located in the center (h), right edge (b, g), lower right (f), upper left (c), lower left (a, e), and upper right of the TG (d). Green circle: TG; Red circle: TGT; S: area of the TG; s: area of the TGT; L1: long diameter of the TGT; L2: short diameter of the TGT.