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Ultrasonography

Ultrasonography

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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Imaging Studies I: Kidney, Ureter, and Bladder Studies

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Imaging Studies IV: Magnetic Resonance Imaging

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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 III: Computed Tomography

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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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Related Experiment Video

Updated: Oct 2, 2025

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

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Published on: June 21, 2024

Contrast-enhanced US of the Liver and Kidney: A Problem-solving Modality.

Mostafa Atri¹, Hyun-Jung Jang¹, Tae Kyoung Kim¹

¹From the Joint Department of Medical Imaging, University Health Network, Mount Sinai Hospital, Women's College Hospital, University of Toronto, Toronto General Hospital, 585 University Ave, Toronto, ON, Canada M5G 2N2.

|February 22, 2022

Summary

Contrast-enhanced ultrasound (CEUS) is a valuable tool complementing CT and MRI, particularly for liver and kidney imaging. Its advantages include superior imaging, real-time scanning, and enhanced safety for patients with kidney issues or allergies.

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Area of Science:

Medical Imaging
Diagnostic Ultrasound

Background:

Contrast-enhanced ultrasound (CEUS) serves as an adjunct to CT and MRI in clinical settings.
Established applications for CEUS are primarily in liver and kidney imaging.

Purpose of the Study:

This article reviews the applications of CEUS in liver and kidney imaging.
Highlights the benefits of CEUS over contrast-enhanced CT/MRI.

Main Methods:

Focuses on the clinical utility and advantages of CEUS.
Discusses applications in specific organs: liver and kidney.

Main Results:

CEUS offers superior contrast resolution and real-time continuous scanning.
Provides a purely intravascular contrast agent with enhanced portability and safety.
Demonstrates particular safety benefits for patients with renal impairment or contrast agent allergies.

Conclusions:

CEUS is a significant tool for liver and kidney imaging.
Its unique advantages make it a preferred alternative in specific patient populations.