Peak and average pressure differences (top-bottom) over the CSF flow cycle for the normal and Chiari models at cycle frequencies of 80 and 120 cpma

Cycle Rate (cpm)Peak Pressure Difference (cm H2O)Average Pressure Difference (cm H2O)
NormalChiariNormalChiari
801.071.210.360.40
1201.081.240.690.80
  • a Absolute values were used.