1. A method of modifying a segmented volume comprising: generating a reduced-resolution segmentation mask comprising a segmented region; performing a morphological erosion on the segmented region to form an eroded region; performing a morphological dilation on the eroded region to form a dilated region; identifying a leakage region in the segmented volume based on the dilated region; and removing the leakage region from the segmented volume to form an updated segmented volume.