Effects of anatomical position on esophageal transit time: A biomagnetic diagnostic technique

Figure 1 Measurement of ETT at different anatomical positions. A: 90° (upright); B: 45° (fowler); C: 0° (supine). The positions of the magnetic sensors are presented (S1 = sensor one, and S2 = sensor 2).

Figure 2 The schematic of the setup, anatomical location of the esophagus, and the circuits for data collection.

Figure 3 Cross-sectional profile of MM.

Figure 4 This series of graph showing the raw signal recorded from a single representative subject lying in the three angles of inclination: 90° (A), 45° (B) and 0° (C).

Figure 5 The results of one way ANOVA demonstrate statistically significant differences in the subjects’ ETT between the supine position (0°) and both the fowler (45°) and the upright (90°) positions.