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The primary interface for the PVSSAS tool, with images rotated 90 degrees by convention. In the right view panel, the GUI displays white matter mask for the selected slice. On the toolbar, options are available for segmenting the whole brain, the selected slice, saving tracing masks, or for altering the parameters for the segmentation algorithm. In the left view panel, the completed segmentation can be viewed and edited—a trained reader can add or remove tracings.
