Figure 1
From: Effect of resting pressure on the estimate of cerebrospinal fluid outflow conductance
Upper plot of pressure against time for one experiment: the infusion investigation starts with measurement of P r (I), CSF sampling with patient in sitting position (II), CPI protocol with six elevated pressure levels back in supine position (III) and a relaxation phase (IV). Lower plot of estimated flow against pressure: Results from the patient measurement illustrating the two analysis methods graphically. Lower red dot is measured P r , upper red dot is mean of the six black dots which are measured flow and pressure from the elevated pressure levels. The dotted black regression line of the six elevated levels illustrate method 1, the red line, connecting Pr and the mean of the elevated levels, illustrate method 2. The slopes of the lines give the Cout estimates respectively.