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Figure 9.6. Physiology of micturition produced by the VocareĀ® sacral nerve stimulator as identified by cystometrogram recording. X-axis represents time in minutes and seconds with the total tracing lasting approximately 3 min. (a) Intravesicular pressure in mm water from 0 to 150. (b) Urine flow rate in ml/s with the scale from 0 to 40 ml/s. (c) Cumulated volume of urine voided in ml with the scale from 0 to 600 ml. (d) Approximate timing of the sacral nerve stimulation used to produce this intermittent voiding pattern.

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