Import CT dicom image included structure~ . message find out!!
Warnings detected during load. Examine data in Advanced mode for details. Load anyway?
Could not load: 19: ARIA RadOnc Structure Sets as a Scalar Volume
How to import the structure?
already installed slicer RT
If structure set is attempted to be loaded by Scalar Volume plugin (as the error message suggests) then it means SlicerRT did not recognize the series - most likely it was not installed (or the installation was incorrect/incomplete).
Try to uninstall SlicerRT and install it again (wait until the “Restart” button becomes enabled in Extension manager, don’t close the window and restart the button manually).
If that fails then follow further instructions in the DICOM FAQ as Steve suggested above.