See intravenous urography.
Examination of the URINARY TRACT by means of contrast medium X-rays (see PYELOGRAPHY; URETHROGRAPHY).
n. radiological examination of the urinary tract. This traditionally involves the injection of radiopaque contrast material and observation of the flow with X-rays (see cystography; intravenous urography; pyelography; urethrography). In CT urography contrast is injected in the vein and CT of the urinary tract acquired when the contrast arrives there. The technique is used in *haematuria to exclude the presence of a tumour within the renal pelvis, ureter, or bladder. MR urography is used to visualize the urinary tract by *magnetic resonance imaging. An MR contrast medium is injected into a peripheral vein and passes to the kidneys and ureters, when images of thin sections can be obtained. These can be manipulated by computer to reveal the anatomy and any pathology (e.g. stones, tumours) of the imaged structures. MR urography is particularly useful in children.
An X-ray procedure, commonly abbreviated to , used to give a clear image of the urinary tract. The procedure involves intravenous infusion of a contrast medium into the arm. The medium is carried in the blood to the urinary system, where it passes through the kidneys, ureters, and bladder to be excreted in the urine. X-rays taken at intervals show outlines of the urinary system. detects abnormalities such as tumours and obstructions, and signs of kidney disease.... intravenous urography
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