Validation of oesophageal impedance for assessment of volume clearance
| Time from swallow to: (n=35) | Videofluoroscopy (seconds) | Impedance (seconds) |
|---|---|---|
| Oesophageal filling | 2.14 (0.18) | 2.01 (0.11) |
| Oesophageal emptying | 5.93 (0.50) | 5.56 (0.32) |
| Interval filling—emptying (volume clearance time) | 3.79 (0.39) | 3.55 (0.33) |