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radiography of the urinary bladder and urethra.
chain cystourethrography that in which a sterile beaded metal chain is introduced via a modified catheter into the bladder and urethra; used in evaluating anatomical relationships of the bladder and urethra.
Radiography in which a sterile beaded radiopaque chain is introduced into the bladder by a special catheter so that one end of the chain is in the bladder and the other extends outside via the urethra. This examination is useful in demonstrating anatomical relationships, esp. in women with persistent urinary incontinence.
See also: cystourethrography