From the Files menu, select Update Plug-ins.
Check the Mask Subtraction plug-in module and click OK.
Select a DSA study from worklist.
If the necessary information exists in the study data, a pop-up box asks if you want the mask subtraction applied automatically. Select Yes to generate the images. You are finished. Otherwise, select No to apply it manually and continue.
Click on the blank grid square. Then, click Postprocessing/Mask Subtraction Plug in/Create.
Drop the selected series into the blank grid square. The image series begins processing automatically.
To configure the mask subtraction plug-in to disable notification, click Postprocessing/Mask Subtraction/Configuration to pop up the configuration box. Uncheck display notifications.