Related Experiment Video

Updated: Jul 13, 2026

Use of Ultra-high Field MRI in Small Rodent Models of Polycystic Kidney Disease for In Vivo Phenotyping and Drug Monitoring
07:35

Use of Ultra-high Field MRI in Small Rodent Models of Polycystic Kidney Disease for In Vivo Phenotyping and Drug Monitoring

Published on: June 23, 2015

Magnetic resonance imaging of the dysplastic renal moiety and ectopic ureter

V M Gylys-Morin1, E Minevich, L D Tackett

  • 1Department of Radiology, Cincinnati Children's Hospital Medical Center, Ohio 45229-3039, USA.

The Journal of Urology
|November 4, 2000
PubMed

Insights

Magnetic resonance imaging (MRI) accurately diagnosed dysplastic renal moieties and ectopic ureters in children when other imaging failed. MRI aids in surgical planning for these complex pediatric urinary tract anomalies.

Area of Science:

  • Pediatric Radiology
  • Urology
  • Medical Imaging

Background:

  • Dysplastic renal moieties and ectopic ureters present diagnostic challenges in children.
  • Conventional imaging may fail to fully delineate complex urinary tract anatomy.

Purpose of the Study:

  • To determine the role of magnetic resonance imaging (MRI) in evaluating symptomatic children with suspected dysplastic renal moieties and ectopic ureters.
  • To assess MRI's diagnostic accuracy compared to conventional methods.

Main Methods:

  • Retrospective review of clinical, imaging, cystoscopic, surgical, and histological data from 6 children (ages 1-15).
  • Analysis of MRI findings in relation to subsequent surgical and cystoscopic outcomes.

Main Results:

  • MRI provided detailed multiplanar images of dysplastic renal moieties, aiding diagnosis and predicting surgical findings.
  • MRI identified ectopic ureter insertion sites missed by cystoscopy in 3 of 5 patients.
  • MRI accurately characterized pelvic cystic structures as tortuous distal ureters.

Conclusions:

  • MRI is a valuable tool for diagnosing dysplastic renal moieties and ectopic ureters in children.
  • MRI can facilitate diagnosis, guide cystoscopy, and assist in preoperative planning for these conditions.
Abstract

More Related Videos

Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis06:09

Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis

Published on: July 18, 2017

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition03:19

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition

Published on: June 21, 2024

Related Concept Videos

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

Imaging Studies I: Kidney, Ureter, and Bladder Studies

Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...