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The distribution of the residue ratings (valleculae and piriform sinuses) based on perceptual ratings and quantitative (reverse-modeled) scores
| 0 | 1 | 2 | 3 | |
|---|---|---|---|---|
| No residue to trace amount | < 25 % height ratio | 25–50 % height ratio | > 50 % height ratio | |
| Valleculae (perceptual) | 7 | 17 | 7 | 9 |
| Valleculae (quantitative) | 5 | 1 | 13 | 21 |
| Piriform sinuses (perceptual) | 15 | 7 | 11 | 7 |
| Piriform sinuses (quantitative) | 14 | 1 | 6 | 19 |
