Related Experiment Video

Updated: Oct 24, 2025

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
05:25

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Published on: August 14, 2019

19.4K

Contrast-enhanced voiding urosonography part 2: urethral imaging

Carol E Barnewolt1, Patricia T Acharya2,3, Elisa Aguirre Pascual4

  • 1Department of Radiology, Boston Children's Hospital, Harvard University, 300 Longwood Ave., Boston, MA, 02115, USA. Carol.Barnewolt@childrens.harvard.edu.

Pediatric Radiology
|August 13, 2021
PubMed

Insights

Contrast-enhanced ultrasound (CEUS) improves visualization of the pediatric urethra. Both voiding and retrograde instillation techniques are safe and accurate for diagnosing urethral and periurethral pathologies in children.

Area of Science:

  • Pediatric Radiology
  • Medical Imaging
  • Urology

Background:

  • Ultrasound (US) is a vital imaging modality for pediatric urethral assessment.
  • Advancements in US contrast agents have significantly enhanced urethral visualization.
  • Previous methods included non-voiding, voiding, and saline instillation sonography.

Purpose of the Study:

  • To review the technical aspects of contrast-enhanced ultrasound (CEUS) for pediatric urethral imaging.
  • To discuss the imaging findings of urethral pathologies in children using CEUS.
  • To compare voiding and retrograde instillation techniques for urethral CEUS.

Main Methods:

  • Contrast-enhanced voiding urosonography (ceVUS) during the voiding phase.
  • Retrograde instillation of a contrast agent into the urethra.
  • Evaluation of both techniques for tolerability and diagnostic accuracy in pediatric patients.

Main Results:

  • CEUS provides improved visualization of urethral anatomy and periurethral soft tissues.
  • Both voiding and retrograde CEUS techniques are well-tolerated by children.
  • Accurate information regarding urethral pathologies is obtained with both methods.

Conclusions:

  • Contrast-enhanced ultrasound is an effective tool for evaluating pediatric urethral conditions.
  • CEUS, via voiding or retrograde instillation, offers accurate and safe diagnostic capabilities.
  • This review highlights the utility of CEUS in pediatric urethral imaging.

Keywords:
ChildrenContrast-enhanced retrograde urethrosonographyContrast-enhanced voiding urosonographySuprapubicTransperinealUltrasoundUltrasound contrast agentsUrethra

More Related Videos

Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography03:19

Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography

Published on: June 21, 2024

1.5K
Probe-based Confocal Laser Endomicroscopy of the Urinary Tract: The Technique06:31

Probe-based Confocal Laser Endomicroscopy of the Urinary Tract: The Technique

Published on: January 10, 2013

21.0K

Related Concept Videos

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...
273
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...
89
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...
337
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...
94
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...
70
Urologic Endoscopic Procedure: Cystoscopic Examination01:28

Urologic Endoscopic Procedure: Cystoscopic Examination

Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
718