"The exam is performed similarly to a conventional cystogram, but gas is also introduced through the Foley catheter. The concept is similar to a double contrast upper GI study; the combination of water-soluble iodine-based contrast (e.g. Cystografin) and gas allows better evaluation of the bladder lumen than a single-contrast cystogram."
"The exam is performed similarly to a conventional cystogram, but gas is also introduced through the Foley catheter. The concept is similar to a double contrast upper GI study; the combination of water-soluble iodine-based contrast (e.g. Cystografin) and gas allows better evaluation of the bladder lumen than a single-contrast cystogram."