Retrograde Pyelography Procedure. A retrograde pyelogram is a quick, relatively painless procedure that helps identify abnormalities in your urinary tract. The ureters are the long tubes that connect your kidneys to your bladder.
Retrograde pyelography (also known as retrograde pyeloureterography) is a method of imaging the upper urinary collecting system. Retrograde pyelography uses a special dye (โcontrast agentโ) injected into the.