Endoscopic Retrograde Pyelography

Endoscopic Retrograde Pyelography. Retrograde pyelography uses a special dye (“contrast agent”) injected into the. Cystoscopy and ureteroscopy are common procedures performed by a urologist to look inside the urinary tract.

Retrograde pyelography and endoscopic balloon dilation under fluoroscopic guidance. The ureters are the long tubes that connect your kidneys to your bladder.