Radiography of the pelvis of the kidney and ureter using a contrast solution.
X-ray examination of a kidney after introduction of a contrast medium.
A kind of kidney function test using a form of radiography.
X-ray studies of the kidneys and urinary tract after injection of contrast medium, to diagnose abnormalities or disease.
An X ray of the urinary system made with a dye that highlights the kidneys and ureters (the tubes that carry urine from the kidneys to the bladder). The test is performed when a person has symptoms that may indicate abnormalities, infection, tumors, injury, or disease in the urinary system. There are three ways of introducing the dye into the kidneys. In the simplest test, intravenous pyelography (IVP), a thin needle is inserted into a vein, usually on the inside of the elbow or the back of the hand, and the dye is injected through it. X rays are taken as the dye passes through the kidneys, the ureters, and the bladder. In retrograde pyelography, a small tube is inserted into the urinary tract and through the bladder into the ureters. The dye is then sent up the tube into the ureters and kidneys, and X rays are taken. For antegrade pyelography, the dye is injected into the kidney through a needle inserted through the skin. X rays are taken as the dye moves through the kidneys and down the ureters into the bladder. Pyelography allows the physician to see any birth defects, tumors, disease, or damage that may be present.
X-ray examination of the kidneys using radio-opaque contrast material. In intravenous pyelography (excretion urography) the contrast medium is injected into a vein and is concentrated and excreted by the kidneys. In retrograde pyelography, fine catheters are passed up the ureter to the kidneys by cystoscopy and contrast material is injected directly into the renal pelvis to allow X-ray examination. The X-ray pictures obtained from these procedures are called pyelograms.
The process whereby the kidneys are rendered radio-opaque, and therefore visible on an X- ray film. It may be used in assessing a patient with kidney disease.
Radiography of the renal pelvis and ureter after injection of a radiopaque contrast medium.
X-ray imaging of the kidney and ureter following the introduction of a substance that is visible on x-rays.