Iopentol in Urography

Magnetic Resonance Urography in Patients with Non- Contributory Intravenous Urography

Magnetic Resonance Urography (MRU) is increaingly replacing Intravenous Urography (IVU) which has been the traditional modality for uro-imaging. However, the effectiveness and advantages of this new and costly modality need to be proven before defining its place in the uro-radiological armamentarium. We conducted a prospective study to assess the role of MRU in 100 consecutive cases where IVU w...

Cystoscopy and Urography

Comparison Between Intravenous Urography and Computed Tomography Urography in Diagnosing Ureteropelvic Junction Obstruction

We read with interest the article by Xie et al. (1) in a previous issue of Nephro-Urology Monthly (October 2011), regarding the comparison between intravenous urography and computed tomography urography in diagnosing ureteropelvic junction obstruction. As previously described, pathological lesions at the ureteropelvic junction are classified into intrinsic and extrinsic abnormalities. In the ca...

Can Intravenous Urography be Replaced by CT Urography? Our Experience in the Evaluation for Hematuria

This study was conducted for comparing the diagnostic rate of CT and IVU for hematuria and establishing a proper diagnostic protocol During the year of 2004, total 32 patients presented with hematuria received both IVU and CT examination. The CT examination included three phase axial scan: noncontrast (phase I), 90 seconds (phase II) and 180 seconds (phase III) after contrast administration and...

Excretion urography in acute renal failure.

High-dose excretion urography has been carried out in 32 patients presenting with non-obstructive acute oliguric or non-oliguric renal failure. An early, dense, persisting nephrogram has been observed in all patients with acute uncomplicated tubular necrosis and in patients with acute oliguric pyelonephritis. This appearance is modified by the presence of pre-existing renal disease. Different p...