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Related Concept Videos

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

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Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
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Imaging Studies IV: Magnetic Resonance Imaging01:27

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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,...
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Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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Imaging Studies I: CT and MRI01:14

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
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Liver magnetic resonance imaging: how we do it.

Govind B Chavhan1,2, Lara Farras Roca1,2, Ailish C Coblentz3,4

  • 1Department of Diagnostic Imaging, The Hospital for Sick Children, 555 University Ave., Toronto, ON, M5G 1X8, Canada.

Pediatric Radiology
|April 2, 2021
PubMed
Summary

Pediatric magnetic resonance imaging (MRI) helps diagnose liver conditions but can require sedation. Optimizing MRI techniques can reduce the need for sedation in children undergoing liver evaluations.

Keywords:
ChildrenDynamicGadolinium-based contrast mediaGadoxetateHepatobiliary contrast agentsLiverMagnetic resonance imaging

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Area of Science:

  • Pediatric radiology
  • Medical imaging
  • Hepatology

Background:

  • Magnetic resonance imaging (MRI) is crucial for diagnosing various pediatric liver conditions, including focal lesions, vascular diseases, biliary issues, and diffuse liver diseases.
  • Standard MRI examinations can be lengthy, frequently necessitating sedation or anesthesia for young children, posing logistical and safety challenges.

Purpose of the Study:

  • To outline essential concepts and techniques for optimizing pediatric liver MRI examinations.
  • To minimize the requirement for sedation or anesthesia in pediatric patients undergoing MRI for liver assessment.

Main Methods:

  • Discussion of key concepts in pediatric liver MRI protocol optimization.
  • Emphasis on appropriate magnetic resonance imaging sequence selection.
  • Guidance on contrast media selection, dynamic imaging, and understanding contrast enhancement phases.

Main Results:

  • Optimized MRI protocols can improve diagnostic accuracy for pediatric liver diseases.
  • Effective technique selection and protocol organization are vital for efficient examinations.
  • Minimizing examination time through strategic protocoling can reduce the need for sedation.

Conclusions:

  • Understanding and applying optimized MRI techniques are essential for accurate pediatric liver disease evaluation.
  • Strategic protocol organization and sequence selection can significantly decrease the need for sedation or anesthesia in children.
  • Improved MRI practices enhance patient experience and diagnostic yield in pediatric hepatobiliary imaging.