Urodynamic Evaluations
- Cystometrogram
The multichannel, or subtracted, cystometrogram simultaneously measures intra-abdominal, total bladder, and true detrusor pressures. This allows involuntary detrusor contractions to be distinguished from increased intra-abdominal pressure. The voiding cystometrogram detects outlet obstruction in patients who are able to void.
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- Cystometry
Cystometry may be used to measure the anatomic and functional status of the bladder and urethra. The cystometer is an instrument that measures the pressure and capacity of the bladder; thus evaluating the function of the detrusor muscle. Simple cystometry detects abnormal detrusor compliance, but abdominal pressure is not included and the results must be evaluated with caution.
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