What is the difference between antegrade and retrograde pyelography?
Antegrade pyelography is the procedure used to visualize the upper collecting system of the urinary tract, i.e., kidney and ureter. It is done in cases where excretory or retrograde pyelography has failed or contraindicated, or when a nephrostomy tube is in place or delineation of upper tract is desired.
How do you do antegrade pyelography?
An ultrasound probe or a CT scan will be used to first find the kidneys. Then, the skin over the kidney will be numbed and a needle is passed to the kidney. Dye is inserted to outline the renal collection system. (This is the part of the urinary tract that drains urine between the kidney and bladder.)
What does retrograde pyelography mean?
A retrograde pyelogram is an imaging test that uses X-rays to look at your bladder, ureters, and kidneys. The ureters are the long tubes that connect your kidneys to your bladder. This test is usually done during a test called cystoscopy.
What is percutaneous antegrade pyelography?
Percutaneous antegrade pyelography allows the clinician to evaluate the renal pelvis and ureter, to localize the ureteral obstruction, and to determine whether the obstruction is partial or complete (17).
Can you urinate before CT scan?
You may be asked to drink water before a CT urogram and not to urinate until after the procedure.
What is a retrograde Cystogram?
Retrograde cystography is an imaging test that uses X-rays to see the bladder. X-rays are made of the bladder after it has been filled with a contrast dye. The dye lets the radiologist see your bladder and nearby tissues more clearly.
Are kidney stents painful?
Stents can cause discomfort and pain in the bladder, kidneys, groin, urethra and the genitals. The discomfort or pain may be more noticeable after physical activity and passing urine. Taking regular painkillers, such as paracetamol, should ease the discomfort.
What contrast media is used in retrograde pyelography?
Retrograde pyelography uses a special dye (“contrast agent”) injected into the ureters. The dye makes the ureters and kidneys more easily seen on the x-ray. This test is like an intravenous pyelogram (IVP). But with IVP, the dye is injected into a vein instead of the ureter.
Why would a urologist order a CT scan?
A CT urogram is used to examine the kidneys, ureters and bladder. It lets your doctor see the size and shape of these structures to determine if they’re working properly and to look for any signs of disease that may affect your urinary system.