Pressure-Flow Study
Nexam Pro User Manual
89
Leak point, valsalva and cough results
The explanation of the leak point, Valsalva, and cough results can be found in
§ 5.4.
6.4.2
Voiding Phase Results
The voiding phase is separated from the filling phase by means of an end
filling phase marker.
The letters between square brackets in the formulas refer to the corresponding
letters of the image in § 4.4.
Void
The voiding function is reported as expressed by maximum flowrate together
with voided volume and post-void residual urine in the format:
VOID = Qmax/VV/VRU (Maximum flow/Volume Voided/Residual Volume)
Undetermined values are substituted by a hyphen -. when only the volume is
measured VOID = -/340/-.
BOOI and BCI
When selected in the results, the BOOI shows the Bladder Outlet Obstruction
Index: Pdet@Qmax - 2Qmax.
The ICS nomogram divides patients into three classes based on the BOOI:
unobstructed (BOOI
≤ 20), equivocal (BOOI = 20-40) and obstructed (BOOI ≥
40).
The BCI shows the Bladder Contractility Index: Pdet@Qmax + 5Qmax,
The BCI nomogram divides patients into three classes: strong (BCI > 150),
normal (BCI = 100
–150) and weak (BCI < 100) contractility.
Qmax
Qmax is the maximum measured value of the flow during micturition.
When a Peak flow marker is present, the peak flow will be the flow at the Peak
flow marker. When flow markers are present and no peak flow marker is
present, the peak flow will be the flow at the second flow marker.
Calculated: Qmax = [F]
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