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White Pixel Count for the Final Subtraction Image in Each Respiratory Nuclei Scenario.
| Scenario | White Pixel Count |
|---|---|
| 1 No mask | 12,020,889 |
| 2 Mask fitted, no suction | 9,736,099 |
| 3 Mask fitted, suction applied | 216,316 |
| 4 Mask fitted, suction, instrument valve removed | 153,636 |
| 5 Mask fitted, suction, instrument valve removed, with endoscope | 214,731 |
