Biomechanical Interpretation of Clinical Cystometrogram

Wim A van Duyl*

After a short history of clinical consideration of biomechanical properties of bladder function and incontinence, standard clinical mechanical interpretation of cystometrograms is discussed. The interpretation is reconsidered according to a modified biomechanical model and published experimental results related to the model. The objective is to promote clinical evaluation of cystometrograms according to the presented model. A crucial aspect of the model is that actual total bladder volume V is separated into an elastic part V_E related to actual detrusor pressure p_d and a contractile part V_R with zero detrusor pressure. An argument to apply this model is that V_E/V_R depends on the history of elongations and stimulated or spontaneous contractions, and makes the pressure-volume relation not characteristic of a particular bladder. 

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Published on: Jul 23, 2026 Pages: 6-11

Full Text PDF Full Text HTML DOI: 10.17352/aur.000057
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