Edit segments and VOIs
Edit, name, hide or delete segment and VOI regions.
Read the cursor
Image tools use pointer + tool icon. Segmentation / VOI interiors show Move; edges and handles show Resize. Drag outside existing regions to create another.
Crosshair priority
With ordinary tools, crosshair hits take priority for positioning or rotation. Enabled segmentation / VOI takes over region editing. Switch to Windowing or another tool to use crosshairs.
Cancel and delete
Click the image for keyboard focus. Esc cancels drawing or editing; Delete / Backspace removes the selection. Keys in input fields edit text only.
Select and name
Click a name to select; double-click to rename. The left dot toggles visibility, and × deletes the item. Unchecking Enabled hides that region type and pauses drawing.
Clear regions
Clear segmentation / Clear VOI removes that type. Clear all removes both region types in the current MPR tab without affecting other tabs. In 4D, both actions affect only the current phase; regions in other phases remain.
Continue later
Regions and segmentation masks save and restore with a workspace; statistics can be exported in measurement reports. Binary SEG import/export and structured SR export are supported. RTSTRUCT and SR import remain unavailable. Closing unsaved tabs loses their results.