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Related Concept Videos

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 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 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...
Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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 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...

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

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Published on: August 14, 2019

Computed tomographic urography update: an evolving urinary tract imaging modality.

Zachary W Washburn1, Jonathan R Dillman, Richard H Cohan

  • 1University of Michigan Health System, Department of Radiology, C.S. Mott Children's Hospital, Ann Arbor, MI 48109-5252, USA.

Seminars in Ultrasound, CT, and MR
|August 29, 2009
PubMed
Summary
This summary is machine-generated.

Multi-detector computed tomography urography (CTU) is the preferred imaging method for evaluating the urinary tract. Advances in CTU techniques enhance visualization of the urothelium for diagnosing various kidney and bladder conditions.

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Area of Science:

  • Radiology
  • Urology
  • Medical Imaging

Background:

  • Multi-detector computed tomography urography (CTU) has become the standard for urinary tract evaluation.
  • It has largely replaced older methods like excretory urography.
  • CTU techniques have advanced to improve visualization of the urothelial surface.

Purpose of the Study:

  • To provide a contemporary review of multi-detector computed tomography urography.
  • To cover imaging protocols, postprocessing, and interpretation of urinary tract conditions.
  • To highlight common pitfalls in CTU image interpretation.

Main Methods:

  • Review of current multi-detector computed tomography urography techniques.
  • Discussion of image postprocessing methods for enhanced visualization.
  • Analysis of imaging appearances for various pathologies.

Main Results:

  • CTU accurately depicts numerous benign and malignant conditions of the kidneys, ureters, and bladder.
  • Evolving CTU techniques improve urothelial surface visualization.
  • The article details imaging protocols and interpretation strategies.

Conclusions:

  • Multi-detector computed tomography urography is a well-established and comprehensive imaging modality.
  • CTU is crucial for diagnosing a wide range of urinary tract pathologies.
  • Understanding protocols and potential pitfalls is key for accurate interpretation.