Figure 2
Lateral view showing reference axes, anatomical landmarks and morphometry in present study (A) Reference axes used in Method-1 and Method-2. Reference axes and landmarks were expressed on volume rendering 3D images of the head region constructed with software OsiriX. (B) Anatomical landmarks and morphometry measured in present study. Landmarks were expressed on maximum intensity projection 3D images of the head region constructed with software OsiriX for inside viewing. Distances between bilateral Ex1s, bilateral Ints and collateral Ex1 and Int were defined as LEE, LEI, and LEI, respectively.