What is antegrade pyelography?

An antegrade pyelogram is an imaging test to find a blockage (obstruction) in the upper urinary tract. Your urinary tract includes the kidneys, ureters, and bladder. The ureters are the narrow tubes that carry urine from the kidneys to the bladder.

Is antegrade pyelography done blindly?

Percutaneous needle puncture of the renal pelvis for antegrade pyelography is a technique that is widely accepted and can be performed in most cases as an alternative to retrograde pyelogram. The initial blind technique was introduced by Goodwin et al. but was later improved using fluoroscopic guidance.

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 is antegrade Nephrostogram?

An antegrade pyelogram is an imaging test to find a blockage in the upper urinary tract. Your urinary tract includes the kidneys, ureters, and bladder.

What is a delayed Nephrogram?

A delayed nephrogram, commonly described on plain film urography, but also visible on CT urography, is when there is absence or reduction of the normal renal parenchymal enhancement on the nephrographic phase images.

What is the difference between KUB and IVU?

Unlike a kidneys, ureters, and bladder x-ray (KUB), which is a plain (that is, noncontrast) radiograph, an IVP uses contrast to highlight the urinary tract.

Can you pee with a nephrostomy tube?

If you have only one tube, you still need to urinate. Your other kidney will still produce urine that will drain into your bladder. Having a nephrostomy tube in for a long time increases the risk of getting an infection.

How long should a nephrostomy tube stay in?

If cancer treatment or a stent does not clear the blockage, the nephrostomy tube is left in. The doctor replaces it every 3 to 4 months, to stop it from blocking. Replacing a nephrostomy tube is a very quick procedure.

Are CT scans hard on your kidneys?

Contrast agents for both CT and MRI are an extremely safe group of drugs and adverse side effects rarely develop. CT contrast materials do rarely cause kidney damage and a skin disorder called nephrogenic systemic fibrosis (NSF) can be caused by the MRI contrast agents.

What is a Nephrogram test?

What is a Nephrogram? It is a diagnostic test performed in the nuclear medicine laboratory. A special radioactive drug, which has the property to be taken up and secreted by the kidneys, is administered intravenously (i.v.). Then, a special camera is placed behind the body at the height of the renal region.

What do you need to know about an antegrade pyelogram?

Antegrade Pyelogram. What is an antegrade pyelogram? An antegrade pyelogram is an imaging test to find a blockage (obstruction) in the upper urinary tract. Your urinary tract includes the kidneys, ureters, and bladder. The ureters are the narrow tubes that carry urine from the kidneys to the bladder.

Which is the best description of retrograde pyelography?

Retrograde pyelography (also known as retrograde pyeloureterography) is a method of imaging the upper urinary collecting system.

Can a retrograde pyelogram be used after a CTU?

After IVU and CTU were developed, it has been rarely performed as a primary study, but it still has a few potential indications as a secondary study. if there is still clinical concern for evaluating the collecting system after an IVU or CTU, a retrograde pyelogram may be able to better image the segment of ureter

Where does the contrast go in a pyelogram test?

During the test, the radiologist injects a contrast dye through a needle that is placed through the flank area of your back. The area will be cleansed with sterile material and you will be given a local anesthetic. The radiologist uses X-ray images to watch the contrast dye as it moves from the kidney into the ureter and then to the bladder.

What is antegrade pyelography? An antegrade pyelogram is an imaging test to find a blockage (obstruction) in the upper urinary tract. Your urinary tract includes the kidneys, ureters, and bladder. The ureters are the narrow tubes that carry urine from the kidneys to the bladder. Is antegrade pyelography done blindly? Percutaneous needle puncture of the…