How is a voiding cystometrogram (CMG) used in the diagnosis of neurogenic bladder?

Updated: Dec 06, 2018
  • Author: Bradley C Gill, MD, MS; Chief Editor: Edward David Kim, MD, FACS  more...
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Answer

Answer

Pressure-flow study simultaneously records the voiding detrusor pressure and the rate of urinary flow. This is the only test able to assess bladder contractility and the extent of a bladder outlet obstruction.

Pressure-flow studies can be combined with voiding cystogram and videourodynamic study for complicated cases of incontinence.


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