Cystometry
（重定向自Cystometrogram）
![](/Images/godic/202501/07/Cystometrogram0552.png")
![Diagram of cystometry in a female patient.](/Images/godic/202501/07/Cystometry0552.png")
![Cystometrogram showing high frequency oscillations characteristic of expulsion of liquid in the rat.](/Images/godic/202501/07/Cystometrogram20552.png")
Cystometry, also known as flow cystometry, is a clinical diagnostic procedure used to evaluate bladder function. Specifically, it measures contractile force of the bladder when voiding. The resulting chart generated from cystometric analysis is known as a cystometrogram (CMG), which plots volume of liquid emptied from bladder against intravesical pressure.