Fig. 2

Qualitative features assessed as clear visibility or unclear visibility in SVR images. ‘Nb’ - nasal bone; ‘AnS’ - anterior nasal spine; ‘Hy’ - body of hyoid bone; ‘Me’ - body of mentum; ‘AoS’ - aqueduct of sylvius; ‘Ps’ - pituitary stalk; ‘SBS’ - spenobasilar synchondrosis; ‘OpN’ - optic nerves; ‘IAM’ - internal auditory meatus; ‘SCC’ - semicircular canals; ‘Ears’ - external ears