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Related Concept Videos

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

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...
Brain Imaging01:14

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
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Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

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 for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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,...
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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:
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Assessment of Diffusion and Perfusion01:17

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Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
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Diffusion Imaging in the Rat Cervical Spinal Cord
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Published on: April 7, 2015

Basic concepts of MR imaging, diffusion MR imaging, and diffusion tensor imaging.

Eduardo H M S G de Figueiredo1, Arthur F N G Borgonovi, Thomas M Doring

  • 1GE Healthcare, Avenida das Nações Unidas, 8501, 3 andar, 05425-070, São Paulo, São Paulo, Brazil. eduardo.figueiredo@ge.com

Magnetic Resonance Imaging Clinics of North America
|December 7, 2010
PubMed
Summary
This summary is machine-generated.

This article explains Magnetic Resonance Imaging (MRI) physics, focusing on how water diffusion properties enhance MRI diffusion-weighted imaging and diffusion tensor imaging techniques.

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Area of Science:

  • Medical Physics
  • Biomedical Imaging

Background:

  • Magnetic Resonance Imaging (MRI) contrast relies on intrinsic tissue characteristics and specific pulse sequences.
  • Diffusion properties of water are increasingly utilized in various MRI applications.

Purpose of the Study:

  • To provide an overview of fundamental MR physics.
  • To explain the physics behind diffusion MR imaging (dMRI) and diffusion tensor imaging (DTI).

Main Methods:

  • Review of basic Magnetic Resonance (MR) physics principles.
  • Explanation of the physical basis for diffusion-weighted imaging (DWI) techniques.
  • Description of the physics underlying diffusion tensor imaging (DTI).

Main Results:

  • Understanding MR physics is crucial for interpreting diffusion-based MRI.
  • dMRI and DTI leverage water diffusion for enhanced tissue characterization.

Conclusions:

  • This article serves as a foundational guide to the physics of diffusion MRI.
  • It aims to improve comprehension of advanced diffusion imaging techniques like dMRI and DTI.