Figure 3a: Filling and voiding cystometry _ detrusor overactivity

Pves = intra vesicle pressure
Pabd = abdominal pressure (measure via the rectal probe)
Pdet = detrusor pressure ( Pves - Pabd)
Qin = rate of infusion
Qura = rate of micturition
Vin = volume of infusion
Vura = volume of urine voided