Figure 1

Non-contrast sinus computed tomography (CT). The maximal thickness of the bony partition of the anterior ethmoid sinuses (indicated by caliper) was measured on an axial sinus CT section. caliper
Non-contrast sinus computed tomography (CT). The maximal thickness of the bony partition of the anterior ethmoid sinuses (indicated by caliper) was measured on an axial sinus CT section. caliper