pyelography


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pyelography

 [pi″ĕ-log´rah-fe]
radiography of the renal pelvis and ureter after injection of a contrast medium; there are two methods: the intravenous method and the retrograde method. Preparation of the patient for pyelography includes clearing the intestinal tract of as much fecal material and gas as possible so that there can be adequate visualization of the urinary tract structures. Usually this is accomplished by administration of a laxative. The evening before the examination the patient is given a light meal and then all foods and fluids are restricted after 9:00 pm.

In the intravenous method the contrast medium is injected intravenously at designated intervals and x-ray films are taken to observe the rate of excretion, the concentration of the contrast medium in the pelvis and calices of the kidney, and the outline of the ureters and urinary bladder. The possibility of an allergic reaction to the contrast medium must always be considered. Drugs such as epinephrine and hydrocortisone should be on hand for use in the event of a serious allergic reaction. The patient may experience a mild transitory sensation of warmth, flushing of the face, or a salty taste in the mouth, but these should last only a few moments. Symptoms of anaphylaxis demand immediate treatment.

The retrograde method involves introduction of the contrast medium by way of ureteral catheters. This procedure may be done when special studies of certain parts of the urinary tract are indicated, when adequate concentration of the contrast medium cannot be achieved by the intravenous method, or when a chronic illness, such as diabetes mellitus, affects renal arterioles and prevents intravenous injection of contrast medium.

py·e·log·ra·phy

(pī'ĕ-log'ră-fē),
Radiologic study of the kidney, ureters, and usually the bladder, performed with the aid of a contrast agent injected intravenously or directly through a ureteral or nephrostomy catheter, or injected percutaneously.
[pyelo- + G. graphō, to write]

pyelography

(pī′ə-lŏg′rə-fē)
n.
X-ray photography of the renal pelvises and the urinary tract in which visualization is enabled by the injection with a radiopaque contrast medium either into the bloodstream or into the ureter.

py′e·lo·graph′ic (-lə-grăf′ĭk) adj.

pyelography

Intravenous pyelography, see IVP.

py·e·log·ra·phy

(pī'ĕ-log'ră-fē)
Radiologic study of the kidney, ureters, and usually the bladder, performed with the aid of a contrast agent injected either intravenously, or directly through a ureteral or nephrostomy catheter or percutaneously.
Synonym(s): pyeloureterography, ureteropyelography.
[pyelo- + G. graphō, to write]

pyelography

See UROGRAPHY.
References in periodicals archive ?
However, if an anomaly was found inside the system (e.g., hydronephrosis), intravenous pyelography was carried out.
Detection of Crossing Vessels as the Cause of Ureteropelvic Junction Obstruction: The Role of Antegrade Pyelography Prior To Endopyelotomy.
On the 28th day post laparoscopic ureterocalicostomy, the swines were subjected to euthanasia for resection of the kidneys and ureters and ascending pyelography. The animals were premedicated and anesthetized in the same fashion as for the previous procedure, followed by sacrifice using 40ml of potassium chloride 10% intravenously.
Follow-up for the patients posttreatment of 3-4 months showed the normal ureters with no obstruction or stricture by intravenous pyelography after removing the double J stent.
CIN was first described in a patient with multiple myeloma receiving intravenous pyelography [1].
After urological evaluation, a right lumbar percutaneous pyelography, demonstrating perirenal contrast extravasation due to possible pelvic lesion, was performed.
Patients with cervical carcinoma could develop subclinical changes in renal function since they are exposed to iodinated contrast media during pyelography and CT scan [17].
Somehow, this may be due to the selection of intravenous pyelography and abdominal plain films for screening of CCC, and this of course implies a prevalence of urogenital and abdominal disorders to some degree.
Conn, "Acute renal failure after intravenous pyelography in plasma cell myeloma," The Journal of the American Medical Association, vol.
They cannot be visualised with conventional X-rays or ultrasound scans so we employed a technique called IVP (intravenous pyelography) where we injected a radiographic dye into the vein in the front leg.
The patient underwent cystoscopy and left retrograde pyelography that revealed normal bladder with no bladder outlet obstruction, stenotic distal lower left ureter with huge dilatation beyond it with multiple renal stones (Fig.