Table 3 Groups of evaluated anatomical parameters

1

soft tissue

venous plexus of the nasal mucosa

palatine artery

soft tissue inside the infraorbital canal

2

contour distinction of cortical bone

frontal and nasal bone plate

vomer

infraorbital canal

3

anatomical detail

cancellous bone

ethmoid bone

lumen of the nasomaxillary aperture

4

tissue distinction

distinction between air and mucosal lining of the rostral maxillary and conchofrontal sinus

distinction between mucosal lining and cortical bone of the rostral maxillary and conchofrontal sinus

distinction between venous plexus lining the nasal septum and cortical bone or cartilage

distinction between bone and cartilage of the vomer and nasal septum