Airway Analysis
To visualize and measure the airway:
On the Diagnose tab, click Airway 
.
Indicate two points to create a box surrounding the area of interest.
To adjust the region of interest, drag the handles at the corners of the box.
To start over, click Reindicate points.
Click Finish.
The airway object is added to the 3D viewer. The color legend can be found at the right side of the viewer. The airway can be made transparent. The object is also added to the smart panel. The minimal cross-sectional area value and the total volume are indicated.
Notes
When exporting an STL file for this patient, also the airway model will be included.
When clipping in the surgery ceph wizard, the airway will not be clipped.