You can define points of interest on panoramic images as stenosis location markings or bookmarks. Each stenosis has four points that should be distributed to the correct anatomical places.
To add a stenosis marker:
1. Select a panoramic image.
2. Place the cross-section marker on the desired point.
3. Click Mark Point of Interest 
.
4. Select Stenosis from the drop-down menu.
Four stenosis markings are displayed on the midline of the vessel at the current cut point, as follows:
Ref. 1: Reference marking
Sten St. 1: Stenosis start point
Stenosis 1: A point between the stenosis
Sten. End 1: Stenosis end point
5. Select and drag each stenosis marker to the correct position on the midline.
The markers change color.
You cannot move a marker beyond the next marker, meaning that you cannot move Sten St. 1 past Stenosis 1.
Make sure that you also move the line connecting the marker to the annotation when dragging the marker.
Make sure that two annotations do not overwrite each other.
For each additional stenosis on the same vessel, the point numbering increments by one. For example, the second stenosis on a vessel will be labeled Ref. 2, Sten. St. 2, and so on.
6. If required, add additional stenosis markers on the image.
To delete a stenosis marker (all four points):
1. Select a marker.
2. Press Delete.
To undo all changes made to the vessel:
Click Reset.