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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...
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:
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...
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,...
Brain Imaging01:14

Brain Imaging

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.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
Positron Emission Tomography01:29

Positron Emission Tomography

Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...

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Cardiac Magnetic Resonance Imaging at 7 Tesla
09:14

Cardiac Magnetic Resonance Imaging at 7 Tesla

Published on: January 6, 2019

7 Tesla MR imaging: opportunities and challenges.

L Umutlu1, M E Ladd1, M Forsting2

  • 1Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen.

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|September 3, 2013
PubMed
Summary
This summary is machine-generated.

Ultra-high-field magnetic resonance imaging (MRI) using 7 Tesla (T) systems offers improved diagnostics. This review explores the current applications, opportunities, and challenges of 7T MRI in clinical practice.

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Area of Science:

  • Medical Imaging
  • Physics

Background:

  • The pursuit of higher magnetic field strengths in Magnetic Resonance Imaging (MRI) is motivated by potential advancements in diagnostic capabilities.
  • The advent of in-vivo ultra-high-field (UHF) MRI, specifically at 7 Tesla (T), has shifted research focus towards diverse brain and body imaging applications.

Purpose of the Study:

  • To provide a comprehensive overview of the current state of 7 Tesla (T) MRI technology.
  • To investigate the emerging opportunities and inherent challenges associated with ultra-high-field MRI.

Main Methods:

  • Review of existing scientific literature on 7 Tesla (T) MRI.
  • Analysis of current applications and technological advancements in ultra-high-field imaging.

Main Results:

  • 7 Tesla (T) MRI demonstrates significant potential for enhanced diagnostic imaging across various anatomical regions.
  • The review identifies key opportunities for improved resolution and signal-to-noise ratio in ultra-high-field imaging.
  • Challenges related to radiofrequency (RF) field homogeneity, safety, and artifact reduction at 7T are discussed.

Conclusions:

  • Ultra-high-field 7 Tesla (T) MRI represents a significant technological progression in medical diagnostics.
  • Continued research and development are crucial to overcome the challenges and fully realize the potential of 7T MRI applications.