Axial section pressures (maximum and minimum) in the Chiari model l, for the same sections as in Table 1a
| Section | Chiari Model, Axial Section Pressures Pmax/Pmin (centimeters of water) | |||
|---|---|---|---|---|
| Systole | Diastole | |||
| t = 0.00 seconds | t = 0.25 seconds | t = 0.50 seconds | t = 0.75 seconds | |
| 1 | 19.85/19.83 | 19.97/19.96 | 20.16/20.14 | 20.02/20.01 |
| 3 | 19.81/19.79 | 19.96/19.95 | 20.21/20.18 | 20.02/20.01 |
| 5 | 19.77/19.75 | 19.95/19.94 | 20.25/20.23 | 20.03/20.01 |
| 7 | 19.70/19.69 | 19.93/19.92 | 20.31/20.29 | 20.05/20.05 |
| 19.57/19.56 | 19.91/19.91 | 20.44/20.43 | 20.04/20.04 | |
a In addition, 1 extra section (bottom row) is used 2 cm below the tip of the tonsils. Note that data from the times of flow reversal (ie, t = 0.00 and t = 0.50 seconds) are arbitrarily included in systole and diastole, respectively.