Definition of Success, Failure, and Editing-Required Ratings
| Rating | Findings |
| Success | No or minimal interaction was needed by observer; for example, removing brain or bladder uptake or adding single region with single mouse click |
| Failure | Automatic segmentation missed more than half the visible tumor on scan, or tumor flooded into (also included) uptake in adjacent physiologic structures that required complex slice-by-slice editing of 3 or more regions |
| Editing required | One or 2 additional manual steps were required; for example, adding missed regions or deleting slice-by-slice up to 2 regions of physiologic uptake adjacent to tumor using eraser tool (typically bladder or kidneys) |