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At least 127 records · Page 7Linked to original sources
PubMed2004

Antegrade MDCT pyelography for the evaluation of patients with obstructed urinary tract.

OBJECTIVE: The purpose of this study was to design an alternative imaging technique to CT urography in patients with high-grade urinary tract obstruction, with or without impaired renal function, that uses the superior resolution of MDCT and avoids IV contrast material administration. CONCLUSION: Antegrade MDCT pyelography is an alternative imaging technique to CT urography in patients with high-grade urinary tract obstruction with or without impaired renal function. It enables accurate diagnosis of the level of obstruction, as well as its etiology, including nephroureterolithiasis, urothelial tumors, primary congenital megaureter, uretero-pelvic junction stenosis, ureteral edema, ureteral stricture, retroperitoneal fibrosis, and pelvic lymphadenopathy.

Adult↗
PubMed1978

Pyelorenal backflow during retrograde pyelography after renal transplantation.

Retrograde pyelography in 140 transplanted kidneys within 3 days of the operation showed a high frequency (29%) of pyelorenal backflow. Pyelotubular backflow, ordinarily a rare form of backflow, was seen in one-third of the patients whose transplants were removed within 60 days because of rejection, but in only 4% of the patients with surviving grafts. Pyelosinus backflow was found in 61% of the patients with signs of urinary obstruction, but in only 9% of the other patients. No relationship was found between pyelosinus backflow and graft rejection, or between pyelotubular backflow and urinary obstruction. Pyelotubular backflow may be an early radiographic sign of impending and serious rejection.

Cadaver↗
PubMed1981

Accuracy in preoperative estimation of prostatic size. A comparative evaluation of rectal palpation, intravenous pyelography, urethral closure pressure profile recording and cystourethroscopy.

In a prospective study of 75 patients with prostatic hypertrophy a comparison was undertaken of the accuracy in estimates of operative prostatic weight from conventional preoperative investigations. Estimates from rectal digital palpation alone and from intravenous pyelography (prostatic impression, elevation of the bladder base as well as the configuration of distal ureters) were without significant correlation to operative weights, and were not found useful for preoperative estimation of prostatic size. Prostatic length in urethral closure pressure profile measurements as well as the distance from bladder neck to verumontanum and the weight estimated at cystourethroscopy were statistically significantly correlated to operative weights with a coefficient of correlation in the order of 0.5 and were judged useful, although not very precise in the clinical work.

Aged↗
PubMed1981

Pyelorenal backflow during retrograde pyelography in adult patients.

In a consecutive series of 103 retrograde pyelographies in adult patients suspect of disease in the upper urinary tract, the overall incidence of pyelorenal backflow was 18%. Pyelosinous backflow--seen in 11%--was much more frequent in kidneys with obstructed ureter (20%) than in non-obstructed kidneys (3%). Intrarenal backflow, so far regarded as a rare form of backflow, was almost as frequent as pyelosinous backflow. It occurred in 13% of kidneys with obstructed ureter as opposed to 7% in non-obstructed kidneys. Intrarenal backflow mostly involved only a section of the kidney, in 75% of cases in the upper pole. It occurred both in diseased and in apparently normal kidneys. Pyelosinous and intrarenal backflow in the same kidney was seen in 2% of cases.

Adolescent↗
PubMedDate not supplied

Ultrasonographic-guided, percutaneous antegrade pyelography: technique and clinical application in the dog and cat.

Fluoroscopically guided, percutaneous antegrade pyelography in canine patients has been described previously in the veterinary literature. 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. The technique provided successful diagnosis of ureteral obstruction in all four cases. No complications were observed in three cases. In one feline case, ureteral obstruction with a blood clot occurred following the procedure; however, it could not be ascertained whether this event represented a complication of the technique.

Animals↗
PubMed1976

Thyroid function following intravenous pyelography.

Thyroid function was assessed by total serum thyroxine, free thyroxine index and serum triiodothyronine immediately prior to intravenous pyelography in 105 female outpatients. The thyroid function tests were repeated two months later. Although all three parameters showed a statistically significant mean rise, the changes were small and not clinically significant. Two patients from the study population with a past history of thyrotoxicosis had a transient elevation in serum triiodothyronine but neither patient developed clinical features of hyperthyroidism.

Adult↗
PubMed1963

RENOGRAMS. CORRELATION WITH RENAL ARTERIOGRAPHY AND INTRAVENOUS PYELOGRAPHY.

A study was carried out to determine how well the information supplied by a radioactive renogram correlates with that obtained by renal arteriography and intravenous pyelography. In 1962 35 patients at the UCLA Medical Center had all three studies. This represents a total of 70 kidneys (one kidney surgically absent). We found the radioactive renogram to be a very reliable and valuable aid in the diagnosis of kidney disease. When compared with the results of the intravenous pyelogram and aortogram, the renogram had false negative result in 11 per cent of cases, and a 14 per cent false positive result.

Angiography↗
PubMed1991

Ultrasonically guided fine needle pyelography.

A method for ultrasonically guided fine needle pyelography is described. The procedure involves puncture of the renal pelvis with a long (150-200 mm) 0.8 mm needle which is subsequently bent and fixed to the skin. Puncture of the calyceal system can be performed even in cases of very mild dilatation and contrast medium for detailed radiologic investigation injected. The procedure is simple, safe and inexpensive and it has been performed on 49 patients without complications.

Humans↗
PubMed1990

Diagnosis and management of the hydronephrotic type of multicystic dysplastic kidney. Use of antegrade pyelography.

The distinction between the hydronephrotic type of multicystic kidney disease and ureteropelvic junction obstruction can be difficult using conventional imaging techniques. Antegrade pyelography with or without percutaneous nephrostomy may be performed to confirm the diagnosis of complete ureteral obstruction and to guide management decisions. One may elect either immediate nephrectomy or observation after performance of this diagnostic procedure. Reconstruction of nonsalvageable kidneys is avoided.

Diagnosis, Differential↗
PubMedDate not supplied

Reactions to intravenous pyelography contrast media.

Reactions to contrast media used for intravenous pyelography are everyday possibilities in a radiology department, and statistics indicate that the incidence of fatalities has increased after a period of decline. The physiology of reactions and how to be prepared for them, as described here, are important parts of the technologist's knowledge.

Anaphylaxis↗
PubMed1986

Comparison of ultrasonography, intravenous pyelography and cystoscopy in detection of urinary tract lesions due to Schistosoma haematobium.

The use of ultrasound in detecting urinary tract alterations by Schistosoma haematobium such as hydronephrosis and bladder calcifications was studied in 125 patients of the out-patients department of a district hospital in SE Tanzania, in an area highly endemic for this disease. Ultrasound was compared with plain abdominal X-ray (in 33 patients), intravenous pyelography (29), cystoscopy (31) and simple urine examination (125). Except for bladder calcifications which could not be demonstrated other than by X-ray, sonography compared favorably with IVP and cystoscopy and proved therefore to be a valuable tool in assessing S.h. related morbidity. In children moderate and advanced hydronephrosis were always associated with an irregular bladder wall and correlated strongly with the prevalence and intensity of S.h. infections as well as with haematuria and proteinuria. Important congestive pathology was observed in 1 out of 10 infected children and in 1 out of 20 examined adults.

Adolescent↗
PubMed1989

Microscopic hematuria after blunt trauma. Is pyelography necessary?

Hematuria after blunt abdominal trauma is common with multiple organ system injuries, and many trauma centers routinely perform intravenous pyelography (IVP) on all trauma patients having any degree of hematuria. However, it has been suggested that many IVPs could be avoided if more selective criteria were used. To help determine the need for an IVP, we reviewed the records of 102 consecutive patients undergoing IVP after blunt abdominal trauma over a 17-month period. Twenty-six (25%) patients had gross hematuria. Of these, seven (27%) had abnormal IVPs, and two (7.7%) of those required urologic surgery. Seventy-six (75%) patients had microscopic hematuria. Of these, one (1.3%) had an abnormal IVP but required no urologic surgery. Thus, if IVP had been performed only when gross hematuria was present, then all surgically significant urinary tract lesions would have been recognized, and 75 per cent of these 102 patients would have been spared IVPs. We agree with others that microscopic hematuria alone is not an indication for emergency IVP in these trauma patients. However, gross hematuria or other strong clinical evidence of renal injury still mandates IVP early during the assessment of patients who have suffered blunt abdominal trauma.

Abdominal Injuries↗
PubMedDate not supplied

The upper urinary tract. Pyelography and interventional procedures.

Pyelography is superior to all other imaging techniques for the demonstration of fine detail in the pelveocalyceal system and the ureter. For almost 90 years it has been performed through a retrogradely inserted catheter, but during the recent 30 years antegrade injection via a transparenchymally inserted needle or catheter has become an accepted alternative, especially in case of a dilated upper urinary tract. Both methods have their advantages and their disadvantages. This article presents a review of indications, techniques, and complications. Furthermore, interventional procedures on the upper urinary tract--such as stent placement and balloon dilatation--are now handled by the radiologist, mainly through an antegrade approach. These therapeutic procedures are also reviewed.

Humans↗
PubMed1987

Use of intravenous pyelography in blunt trauma--a reappraisal.

The role of intravenous pyelography (IVP) in the evaluation of blunt abdominal trauma is controversial. Major renal injuries have occasionally been reported in the absence of hematuria, but the test is not always accurate, is expensive and has potential morbidity. By reviewing the charts of 150 consecutive patients seen in an emergency department who had IVP for blunt abdominal trauma, we evaluated the ability of clinical and laboratory findings to predict IVP findings, the incidence of abnormal findings on IVP and the number of times IVP affected patient management. Only one patient's management was found to be clearly affected by the results of the IVP. We feel, therefore, that IVP should be reserved in cases of blunt abdominal trauma for patients with gross hematuria and those with microscopic hematuria and suggestive clinical findings. The absence of hematuria should preclude the use of IVP unless there are other exceedingly strong clinical findings.

Abdominal Injuries↗
PubMed1986

Antegrade pyelography: therapeutic applications.

Antegrade pyelography is a diagnostic examination that is easily converted for therapy in the urinary tract. The applications of the antegrade approach discussed in this article include drainage in obstruction and fistulas, access for manipulations, and topical treatment.

Carcinoma, Transitional Cell↗
PubMed1978

Acute renal failure in insulin-dependent diabetics: episodes secondary to intravenous pyelography.

Diabetic patients with chronic renal failure are known to be at risk for exacerbation of renal failure if they undergo intravenous pyelography (IVP). The present report demonstrates that diabetic patients with normal serum creatinine levels can sustain irreversible renal failure following an IVP. The experiences with this case suggest that, if the creatinine clearance is decreased in an insulin-dependent patient irrespective of the serum creatinine value, one must be aware of the possible hazard of acute renal failure and irreversible renal damage following the IVP. This would appear to be especially true if the diabetic patient has proteinuria in combination with the decreased creatinine clearance.

Acute Kidney Injury↗
PubMed1984

[Antegrade fine needle pyelography of transplanted kidneys].

In a poorly functioning renal transplant ureteral obstruction or perforation must be considered as a cause. Sonography and radionuclide scanning may demonstrate outflow obstruction and/or pararenal fluid collection, but do not usually provide sufficient information on the site of the lesion. In these cases we have successfully used fine needle puncture of the renal pelvis under continuous sonographic guidance and antegrade pyelography. Successful puncture was always possible and exact details of the renal pelvis and ureter were provided after contrast injection. No complications were seen after fine needle puncture. Sonographic guidance is ideal in respect to practicability and cost effectiveness if compared to computed tomography scanning. The technique has proven to be simple and safe to perform. It provides a quick and valuable diagnosis and superior anatomical details for reconstructive surgery.

Diagnosis, Differential↗