Measuring Segments
On a 2D grayscale or a reslice viewer, segments can be measured.
Click Measure on the menu bar.
Click Segment 
.
Click the first point.
Note
When indicating this point on an uncalibrated image, the calibration will start automatically.
Click the second point or right-click to cancel.
Note
In the 3D patient, 3D inspection, Tooth or TMJ workspaces, the second point can be indicated on a different reslice viewer or on a different slice when scrolling through the viewer.
Click the next point. Repeat this step as often as required.
Right-click to finish.
The segment measurement is shown in the viewer and added to the SmartPanel Annotation tab 
. A measurement can be edited by dragging the control points. Segment measurements on reslice viewers will be shown across the reslices.