Antegrade and retrograde pyelography linkedin slideshare. Antegrade pyelography is a diagnostic test that uses special contrast agent dye to produce detailed xray pictures of the upper urinary tract. The ureters are the narrow tubes that carry urine from the kidneys to the bladder. Presentation mode open print download current view. Ureterocolic fistula diagnosed by antegrade pyelography. Oct 01, 20 what is the use of antegrade pyelography. Antegrade urography definition of antegrade urography at. Antegrade pyelography 1 consists of pyelograms made after lumbar needle puncture of a hydronephrosis. Pyelography definition, the science or technique of making photographs of the kidneys, renal pelves, and ureters by means of xrays, after the injection of an opaque solution or of a radiopaque dye. Retrograde pyelography radiology reference article. Pdf ultrasoundguided percutaneous antegrade pyelography with. The advent of ct and ultrasound has markedly decreased indications for iv and retrograde urography. Get a printable copy pdf file of the complete article 2.
Pdf ultrasoundguided percutaneous antegrade pyelography. Since then many kinds of iodine derivatives have been tried, some of them toxic to the subject, until the use of sodium iodide in 10 to 12% solution was established as being free from danger. In an iv pyelogram, after injection of a bolus of iv contrast. Objectiveto determine sensitivity and specificity of radiography, ultrasonography, and antegrade pyelography for detection of ureteral obstructions in cats designretrospective study animals11 cats proceduremedical records of cats that had radiography, ultrasonography, and antegrade pyelography performed for suspected ureteral obstructions were examined. Ultrasoundguided percutaneous antegrade pyelography with computed tomography for the diagnosis of spontaneous partial ureteral rupture in a dog article pdf available in the canadian veterinary. Pyelography definition and meaning collins english. Intravenous pyelography is usually done to look for a block in the flow of urine. In excretory urography, the contrast medium is injected intravenously. Radioisotope antegrade pyelography in ureterovesical. Overview also known as ivp, pyelography, intravenous urogram or ivu is a radiological procedure used to visualize abnormalities of the urinary system, including the kidneys, ureters, and bladder gives a comprehensive view of the patients anatomy and some information on the functioning of the renal system usually done to patient with severe renal colic and a positive hematuria test used as a. Twentyfour patients were examined by antegrade pyelography.
Jan 16, 2019 retrograde pyelography is used by many urologists to visualize the ureters and collecting system of the kidney. Pyelography definition of pyelography by the free dictionary. The procedure involves introducing contrast into the urinary system in a retrograde fashion with simultaneous imaging using dynamic fluoroscopy. The dye makes the ureters and kidneys more easily seen on the xray. Radioisotope antegrade pyelography in ureterovesical obstruction radioisotope antegrade pyelography in ureterovesical obstruction schachner, e eidelman, a goren, e plotquin, g. For some, this is a misnomer and a test that images intravenous contrast as it travels through the kidney parenchyma into the urinary collecting system should only be called intravenous urography. The use of percutaneous antegrade pyelography is illustrated in a series of patients in whom an accurate diagnosis could not be established by conventional intravenous or retrograde pyelography. Do not use this lead to turn on an amplifier, or a signal processor, etc. On retrograde pyelography, extravasation of contrast was seen at the mid lower third of the ureter. In pneumopyelography, oxygen is injected into the pelvis.
This questionnaire, previously designed by consensus among the authors, is a simple fivequestion inventory evaluating the a visibility of urinary obstruction, b location of urinary obstruction, c relationship of the lesion to surrounding structures, d contribution to diagnosis, and e. Links to pubmed are also available for selected references. Antegrade pyelography is the procedure used to visualize the upper collecting system of the urinary tract, i. Pyelography medical definition merriamwebster medical. This technique has been infrequently used in the past and should now be revived. Your urinary tract includes the kidneys, ureters, and bladder. In retrograde, or ascending, pyelography, the contrast medium is injected with a cystoscope and a ureteral catheter. Retrograde pyelography uses a special dye contrast agent injected into the ureters.
Where should retrograde ureterography be done and who should do it. The use of percutaneous antegrade pyelography is illustrated in a series of patients in whom an accurate diagnosis could not be established by conventional. A case of ureterocolic fistula as a result of an impacted lower ureteric stone is reported in which the diagnosis was made on antegrade pyelography. Retrograde pyelography does not evaluate the kidney parenchyma and requires cystoscopy to place the catheters. Waterenhanced antegrade mr pyelography in pregnancy. Pyelography or pyelogram refers to imaging of the urinary collecting system the term is most often encountered in intravenous pyelography or ivp. A urinary obstructionspecific questionnaire was used to calculate a diagnostic score see appendix. Antegrade pyelography is the procedure used to visualize the upper collecting system of the. Comparison of umdct with antegrade pyelography has never been done. It has been especially useful in patients with urinary diversion and ureteral fistula. It is commonly used to diagnose the following conditions hydronephrosis, ureteropelvic junction upj obstruction and obstruction of the ureters. The kidneys will initially be examined with an ultrasound probe or a ct scan. Oct 27, 2017 our aim was to determine if waterenhanced antegrade magnetic resonance mr pyelography can be an alternative to conventional antegrade pyelography in pregnant patients who require percutaneous nephrostomy placement for urosepsis andor obstructive uropathy. Mar 12, 2015 retrograde urography procedure retrograde urography is usually taken in ap projection and positioned the patient in modified litothomy position, retrograde urography is an examination of kidneys, ureters and bladder with the use and administration of contrast media.
Pdf antegrade pyelography versus unenhanced multidetector ct. Synonyms for antegrade pyelography in free thesaurus. Antegrade pyelography article about antegrade pyelography. 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. The purpose of this study was to design an alternative imaging technique to ct urography in patients with highgrade urinary tract obstruction, with. A comparison of pyelography and various reconstructions of. Antegrade urography definition at, a free online dictionary with pronunciation, synonyms and translation. Mr antegrade pyelography demonstrated the level of ureteric obstruction and the absence of renal calculi using sterile water as a contrast. Full text full text is available as a scanned copy of the original print version. Retrograde pyelography was the first method devised for imaging the urinary collecting system, and until the development of early ivu agents in the 1930s, it was the only way of imaging the collecting system. Jun 28, 2019 download pdf copy by yolanda smith, b. An antegrade pyelogram is an imaging test to find a blockage in the upper urinary tract. Antegrade pyelography for suspected ureteral obstruction in. Fluoroscopically guided, percutaneous antegrade pyelography in canine patients has been described previously in the veterinary literature.
Retrograde pyelography is a procedure commonly used by urologists involving xray imaging to visualize the kidneys, bladder and ureters. Percutaneous antegrade pyelography in hydronephrosis. It is commonly used to diagnose upper tract obstruction, hydronephrosis, and ureteropelvic. Antegrade urography definition of antegrade urography by. Plotquin department of nuclear medicine, assaf harofeh hospital telaviv university, medical school 70300 zerifin israel dapartment of urology. Histone methyl transferase ezh2 inhibitor e7438, nci thesaurus also called intravenous pyelography. This procedure is usually performed by a urologist.
Antegrade pyelography definition of antegrade pyelography. Antegrade pyelography synonyms, antegrade pyelography. This report describes the technique with ultrasonographic guidance and its clinical application in the diagnosis of four cases two dogs, two cats of obstructive uropathy. An alternative to the retrograde pyelography is antegrade pyelography, usually performed by an interventional radiologist. Pyelography article about pyelography by the free dictionary. The urologist was however unable to negotiate a guidewire into the upper ureter retrogradely, as the wire was seen to coil into a cavity outside the ureter, likely at the site of transection. Retrograde pyelography is a form of xray used to get detailed pictures of the ureters and kidneys. Retrograde pyelography involves taking xrays of the kidney and ureter by injection of contrast through a ureteric stent. In antegrade pyelography the contrast medium is injected through the skin into the renal pelvis.
Antegrade pyelogram health encyclopedia university of. This article is within the scope of wikiproject medicine, which recommends that medicinerelated articles follow the manual of style for medicinerelated articles and that biomedical information in any article use highquality medical sources. Thus, there are multiple names for this particular radiological procedure which is ultimately employed when it comes to visualizing various abnormalities which might affect ones. Antegrade mdct pyelography for the evaluation of patients with. Retrograde pyelography an overview sciencedirect topics. In 14 patients information was obtained which could not be afforded by any other technique. Pdf a 10yearold spayed female dalmatian dog developed acute vomiting and abdominal pain. Get a printable copy pdf file of the complete article 999k, or click on a page image below to browse page by page. This is done mainly for diagnostic indications, including diagnosis of the level of ureteric obstruction and looking for intrinsic lesions of the ureter and kidney that were not very clear on intravenous pyelography. Ultrasonographicguided, percutaneous antegrade pyelography.
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