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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 intravesical pressure against the volume of fluid in ...
Urethral pressure profilometry: measures strength of sphincter contraction. [7] Electromyography (EMG) measurement of electrical activity in the bladder neck. Assessing the "tightness" along the length of the urethra. Fluoroscopy (moving video x-rays) of the bladder and bladder neck during voiding.
The exam ends when the person voids while the radiologist is watching under fluoroscopy. Consumption of fluid promotes excretion of contrast media after the procedure. It is important to watch the contrast during voiding, because this is when the bladder has the most pressure, and it is most likely this is when reflux will occur.
In this procedure, the balloon is inserted behind the cervical wall and inflated, for example with 30-80 mL of saline. [9] The remaining length of the catheter is pulled slightly taut and taped to the inside of the leg. The inflated balloon applies pressure to the cervix as the baby's head would prior to labor, causing it to dilate.
When arriving at this pressure measurement, bladder pressure is subtracted from the initial reading of internal pressure. (The test was first described by Whittaker in 1973 to test the hypothesis that patients whose hydronephrosis persists after the posterior urethral valves have been ablated usually have ureters that are not obstructed, even ...
Determination of how much urine is in the bladder, for example to assess for urinary retention. To look for evidence and the cause of chronic kidney disease, for example shrunken kidneys. [1] To assist with an interventional procedure, such as the taking of a biopsy, or draining of an abscess or cyst. [1] To monitor a kidney transplant. [1]
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The physician will gently insert the tip of the cystoscope into the urethra and slowly glide it up into the bladder. The procedure is more painful for men than for women due to the length and narrow diameter of the male urethra, and results of a 2019 systematic review of the literature found that intraurethral lidocaine greatly reduces this ...