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Ultrasonography01:17

Ultrasonography

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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.
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Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
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Ultrasound I: Abdominal Ultrasonography01:20

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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.
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Imaging Studies III: Computed Tomography01:27

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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...
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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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Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
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Related Experiment Video

Updated: Mar 12, 2026

Multi-timescale Microscopy Methods for the Characterization of Fluorescently-labeled Microbubbles for Ultrasound-Triggered Drug Release
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Ultrasound contrast agents.

Andre Ignee1, Nathan S S Atkinson2, Gudrun Schuessler1

  • 1Department of Medical, Caritas-Krankenhaus, Bad Mergentheim, Germany.

Endoscopic Ultrasound
|November 9, 2016
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Summary

Contrast-enhanced endoscopic ultrasound (CE-EUS) improves imaging of abdominal organs and mediastinum. This review covers contrast agents, image acquisition, and tissue characterization for CE-EUS applications.

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Area of Science:

  • Gastroenterology and Medical Imaging

Background:

  • Endoscopic ultrasound (EUS) is crucial for mediastinal and abdominal organ imaging.
  • The integration of ultrasound contrast agents (UCAs) has advanced transabdominal ultrasound, prompting similar applications in EUS.
  • Contrast-enhanced EUS (CE-EUS) has been feasible since 2003, with significant research on its use.

Approach:

  • This manuscript details relevant UCAs and their specific applications in EUS.
  • It outlines image acquisition protocols and the principles of tissue characterization using CE-EUS.
  • The review also addresses safety considerations and future developments in CE-EUS.

Key Points:

  • CE-EUS enhances the characterization of focal pancreatic lesions.
  • It improves the evaluation of lymph nodes and subepithelial tumors.
  • Specific contrast agents and imaging techniques are discussed for optimal CE-EUS performance.

Conclusions:

  • CE-EUS offers valuable insights for diagnosing various gastrointestinal and mediastinal conditions.
  • Understanding CE-EUS principles is essential for accurate image interpretation.
  • Continued research and technological advancements promise to expand the utility of CE-EUS.