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Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

44
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...
44
Ultrasonography01:17

Ultrasonography

5.1K
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
5.1K
Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

Imaging Studies I: Kidney, Ureter, and Bladder Studies

35
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...
35
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

50
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,...
50
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

43
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...
43
Ultrasound I: Abdominal Ultrasonography01:20

Ultrasound I: Abdominal Ultrasonography

341
Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
341

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Related Experiment Video

Updated: Aug 29, 2025

Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography
03:19

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

Published on: June 21, 2024

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[Sonographic artifacts in nephrology].

Andrea Mancini1, Marco Taurisano1, Filomena D'elia1

  • 1Unità Operativa Complessa Dipartimentale di Nefrologia e Dialisi Ospedale Di Venere, Bari.

Giornale Italiano Di Nefrologia : Organo Ufficiale Della Societa Italiana Di Nefrologia
|September 8, 2022
PubMed
Summary
This summary is machine-generated.

Ultrasound artifacts in nephrology can mimic real structures but are often useful diagnostic clues. Sonographers must distinguish true findings from artifacts by assessing consistency across different scan angles.

Keywords:
B-mode artifactsColordoppler artifactsnephrological sonography

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Area of Science:

  • Nephrology
  • Medical Imaging
  • Ultrasound Technology

Background:

  • Sonography is increasingly used in nephrology, leading to advanced equipment.
  • Higher quality imaging equipment can produce artifacts due to unfavorable signal-to-noise ratios.
  • Ultrasound artifacts are false signals that do not represent actual biological structures.

Purpose of the Study:

  • To explain the generation and nature of ultrasound artifacts in nephrology.
  • To highlight the importance of differentiating artifacts from true anatomical findings.
  • To discuss the diagnostic utility and potential pitfalls of ultrasound artifacts.

Main Methods:

  • Analysis of physical phenomena (reflection, dispersion, absorption, diffraction) during ultrasound interaction with biological tissues.
  • Evaluation of artifacts related to acoustic impedance differences and B-Mode/color-Doppler settings.
  • Methodology for distinguishing artifacts from true findings based on scan consistency.

Main Results:

  • Ultrasound artifacts arise from physical interactions between ultrasound waves and tissues.
  • Artifacts can stem from acoustic impedance mismatches or incorrect equipment settings.
  • Artifacts are not always detrimental; they can be pathognomonic of specific lesions or physiological structures.

Conclusions:

  • Distinguishing between true sonographic findings and artifacts is crucial for accurate nephrological diagnosis.
  • Artifacts that persist across multiple scans with varying insonation angles are likely real findings.
  • Artifacts that change or disappear with different scanning angles are likely not representative of actual anatomy.