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Related Concept Videos

Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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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.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
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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 for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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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 IV: Magnetic Resonance Imaging01:27

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,...
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Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

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Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
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Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
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Regulating MR Safety Standards.

Sue MacIntyre1

  • 1Sue MacIntyre, MHA, R.T.(R)(MR), CRA, MRSO(MRSC), is magnetic resonance imaging supervisor and MRSO for University of Pittsburgh Medical Center Presbyterian Shadyside. She has worked in magnetic resonance imaging for 32 years.

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Magnetic resonance (MR) imaging uses magnetic fields and radio waves for body scans. This article reviews MR imaging physics, safety evolution, and procedures, highlighting unique safety considerations for strong magnetic fields.

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Area of Science:

  • Medical Imaging Physics
  • Radiological Safety

Background:

  • Magnetic resonance (MR) imaging is a non-ionizing radiation diagnostic tool.
  • Strong magnetic fields in MR scanners necessitate specific safety protocols.
  • The American College of Radiology (ACR) has developed MR safety guidelines since 2002.

Purpose of the Study:

  • To discuss the fundamental physics of MR imaging.
  • To trace the historical development of MR safety recommendations.
  • To outline current MR safety procedures and guidelines.

Main Methods:

  • Review of MR imaging principles.
  • Analysis of the evolution of ACR MR safety documents.
  • Discussion of established MR safety practices.

Main Results:

  • MR imaging relies on magnetic fields and radio waves.
  • Continuous updates in MR safety reflect evolving understanding and technology.
  • The ACR Manual on MR Safety consolidates current guidance.

Conclusions:

  • Understanding MR physics is crucial for safety.
  • Adherence to updated ACR guidelines ensures safe MR examinations.
  • Comprehensive safety procedures mitigate risks associated with MR imaging.