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Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography
Published on: June 21, 2024
[Imaging in pediatric urology]
E Lellig1, J Straub, M Riccabona
1Urologische Klinik und Poliklinik, Campus Großhadern, LMU München, Marchioninistraße 15, 81377, München, Deutschland, Katja.Lellig@med.uni-muenchen.de.
Insights
Magnetic resonance imaging (MRI) offers a comprehensive evaluation of pediatric urinary tracts, avoiding radiation exposure. Advanced MRI techniques with contrast agents provide detailed kidney and urinary tract assessments.
Area of Science:
- Pediatric uroradiology
- Medical imaging techniques
- Renal and urinary tract evaluation
Context:
- Traditional methods like sonography and intravenous pyelogram (IVP) have limitations in assessing pediatric urinary tract issues.
- Sonography excels at visualizing kidney structure but is poor for detecting renal scarring or assessing function.
- IVP evaluates urinary excretion but involves radiation and contrast agents, making it less ideal for children.
Purpose:
- To highlight the advantages of Magnetic Resonance Imaging (MRI) in pediatric uroradiology.
- To discuss the evolution of MRI techniques for comprehensive urinary tract evaluation in children.
- To present MRI as a safer alternative to radiation-based imaging methods.
Summary:
- Modern MRI, utilizing gadolinium contrast and furosemide, enables a complete assessment of the pediatric kidneys and urinary tract.
- MRI overcomes the limitations of sonography and IVP, offering detailed structural and functional insights without ionizing radiation.
- Technological advancements in MRI provide a powerful tool for diagnosing urological conditions in children.
Impact:
- Facilitates accurate diagnosis and management of pediatric urological conditions.
- Reduces the need for radiation-based imaging in pediatric patients, minimizing long-term health risks.
- Enhances the diagnostic capabilities in uroradiology through advanced imaging techniques.
Background:
For many years, sonography and the intravenous pyelogram (IVP) were the most important examination methods for the evaluation of the urinary tract in children. Both methods have their pros and cons: sonography provides ideal visualization of normal kidneys and the evaluation of the pelvicalyceal system. For detection or exclusion of renal scarring, however, this method is not well suited. It provides no information regarding kidney function.
Methods:
With an IVP, it is possible to evaluate urinary excretion and, thus, indirectly assess kidney function. As this examination method involves radiation exposure and the necessity of a contrast agent, it should be avoided in the examination of children. The CT is an excellent examination method that can diagnose nearly all urological diseases in children or answer urological questions; however, a CT scan applies the highest radiation dose of all discussed methods. For this reason, examination via MRI is of increasing importance in uroradiology. Initially only the T2 sequences for the visualization of the urinary tract in children were applied.
Conclusion:
The current technical developments as well as the use of the contrast agent gadolinium and the antidiuretic agent furosemide allow an all-in-one evaluation of the kidneys and urinary tract.
Related Concept Videos
01:22Imaging Studies V: Intravenous Urography and Retrograde Pyelography
01:24Imaging Studies II: Ultrasonography
01:28Imaging Studies I: Kidney, Ureter, and Bladder Studies
01:27Imaging Studies IV: Magnetic Resonance Imaging
01:27Imaging Studies III: Computed Tomography
01:22Imaging Studies VI: Voiding Cystourethrography and Cystography