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Urodynamic Studies: Uroflowmetry01:19

Urodynamic Studies: Uroflowmetry

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Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
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Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

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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...
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Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

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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...
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Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

Imaging Studies I: Kidney, Ureter, and Bladder Studies

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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...
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Imaging Studies II: Ultrasonography01:24

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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...
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Urologic Endoscopic Procedure: Cystoscopic Examination01:28

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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...
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Updated: Sep 10, 2025

Author Spotlight: Enhanced Urodynamic Method for Precise Urine Measurement in Awake Mice with Neurogenic Bladder
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Los artefactos en los estudios urodinámicos: una revisión narrativa

Farzad Pourghazi1, Brian J Linder2, Azra Alizad3

  • 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA.

Neurourology and urodynamics
|August 20, 2025
PubMed
Resumen

Los artefactos ocurren con frecuencia durante los estudios urodinámicos (UDS), lo que afecta el diagnóstico y la investigación. Abordar estas cuestiones técnicas y relacionadas con el paciente es crucial para un manejo preciso de la disfunción del tracto urinario inferior.

Palabras clave:
Los artefactosla vejigasíntomas del tracto urinario inferiorla urodinámica

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Área de la Ciencia:

  • Urología
  • Diagnóstico médico

Sus antecedentes:

  • Los estudios urodinámicos (EDU) son esenciales para el diagnóstico de la disfunción del tracto urinario inferior.
  • Los artefactos en UDS pueden comprometer la interpretación clínica y la validez de la investigación.

Objetivo del estudio:

  • Revisar la prevalencia, la clasificación y la importancia clínica de los artefactos en los estudios urodinámicos.
  • Identificar las fuentes técnicas y relacionadas con los pacientes de los artefactos UDS.

Principales métodos:

  • Revisión enfocada de la literatura de los estudios que reportan datos de artefactos UDS.
  • Análisis de los factores técnicos y relacionados con el paciente que contribuyen a la generación de artefactos.

Principales resultados:

  • Los artefactos son comunes en el UDS, incluso con la adhesión a las Buenas Prácticas Urodinámicas.
  • Las fuentes incluyen problemas de equipo (calibración, desplazamiento del catéter) y factores del paciente (movimiento, hiperactividad del detrusor).
  • Los artefactos pueden conducir a un diagnóstico erróneo, un tratamiento inadecuado y afectar la validez de la investigación.

Conclusiones:

  • La identificación y mitigación de los artefactos UDS es vital para las decisiones clínicas precisas y la investigación confiable.
  • Priorizar la reducción de artefactos mejora la calidad y la utilidad de los estudios urodinámicos.