Improved Depiction of Pterygopalatine Fossa Anatomy Using Ultrahigh-Resolution Magnetic Resonance Imaging at 7 Tesla

Figure 1

1: middle cranial fossa, 2: sphenoidal sinus, 3: nasal cavity with (a) middle concha and (b) inferior concha, 4: temporal muscle, 5: lateral pterygoid muscle, superior head, 6: lateral pterygoid muscle, inferior head, 7: medial pterygoid muscle, 8: optic nerve, 9: common annular tendon (of Zinn) with origins of the medial, inferior, and lateral rectus muscles, 10: orbital or Muller’s muscle, 11: maxillary nerve, and 12: sphenopalatine artery.

(a) Coronal MR image of left PPF

(b) Corresponding surface photograph

(c) Corresponding section

(d) Scanning plane on axial image