Pylorus Functional Lumen Imaging Probe Metrics at Varying Balloon Positions Within the Pylorus in 22 Patients Using MATLAB Software
| FLIP metric | Proximal position (75% of balloon in duodenum and 25% in antrum) | Middle position (50% of balloon in duodenum and 50% in antrum) | Distal position (25% of balloon in duodenum and 75% in antrum) |
|---|---|---|---|
| CSA (mm2) | |||
| 30 mL | 85.7 (31.7) |
76.8 (29.7) |
64.2 (34.5) |
| 40 mL | 131.7 (32.8) |
125.7 (32.3) |
113.4 (27.2) |
| 50 mL | 187.8 (32.5) | 190.4 (39.3) | 185.1 (40.3) |
| Pressure (mmHg) | |||
| 30 mL | 11.9 (4.7)a,b | 9.8 (3.9) |
9.1 (3.9) |
| 40 mL | 15.0 (5.1)a,b | 12.1 (5.0) | 11.1 (4.3) |
| 50 mL | 28.0 (6.2)a,b | 22.7 (5.4) |
21.3 (6.1) |
| DI [CSA/P] (mm2/mmHg) | |||
| 30 mL | 8.6 (5.4) | 8.8 (5.9) | 8.3 (5.7) |
| 40 mL | 9.8 (4.6)a,b | 12.1 (6.3) | 12.8 (7.4) |
| 50 mL | 7.0 (2.1)a,b | 9.0 (3.1) | 9.5 (3.7) |
a
b
CSA, cross-sectional area; DI, distensibility index; P, intra-bag pressure.
Results are expressed in mean (SD).