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Related Concept Videos

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 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 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 VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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...

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Related Experiment Video

Updated: Jun 27, 2026

Unilateral Ureteral Obstruction Model for Investigating Kidney Interstitial Fibrosis
04:37

Unilateral Ureteral Obstruction Model for Investigating Kidney Interstitial Fibrosis

Published on: April 25, 2025

Selective postoperative imaging after ureteroscopy.

Kishore Thekke Adiyat1, Rachel Meuleners, Manoj Monga

  • 1Department of Urologic Surgery, University of Minnesota Medical School, Minneapolis, Minnesota 55455-0392, USA.

Urology
|December 23, 2008
PubMed
Summary
This summary is machine-generated.

Selective imaging after ureteroscopy is sufficient to detect ureteral strictures in complicated cases. Routine follow-up imaging is not essential following uncomplicated ureteroscopy procedures.

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

Published on: June 21, 2024

Area of Science:

  • Urology
  • Surgical Outcomes
  • Medical Imaging

Background:

  • Ureteroscopy is a common procedure for urolithiasis.
  • Postoperative complications, such as ureteral strictures, can occur.
  • The necessity of routine follow-up imaging after ureteroscopy remains debated.

Purpose of the Study:

  • To determine if routine follow-up imaging is necessary after ureteroscopy.
  • To evaluate the efficacy of selective imaging in detecting postoperative ureteral strictures.

Main Methods:

  • Retrospective chart review of 253 patients undergoing ureteroscopy for urolithiasis.
  • Selective postoperative imaging (1-3 weeks post-stent removal) for complicated procedures (impacted stone, balloon dilation, perforation, pain).
  • Routine imaging for uncomplicated procedures if recurrent renal colic or stone surveillance was indicated.

Main Results:

  • Analyzed data from 214 patients with a mean follow-up of 14.5 months.
  • Overall stricture incidence was 1.4% (3/214).
  • Stricture incidence was 5.3% in the complicated (selective imaging) group versus 0% in the uncomplicated group. Significant associations found between strictures and stone impaction, balloon dilation, and mucosal perforation.

Conclusions:

  • Selective imaging based on intraoperative findings effectively detects postoperative ureteral strictures.
  • Routine follow-up imaging is not essential after uncomplicated ureteroscopy.
  • Imaging should be tailored to patient risk factors identified during the procedure.