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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...
Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...

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Related Experiment Video

Updated: Jun 17, 2026

Cardiac Magnetic Resonance Imaging at 7 Tesla
09:14

Cardiac Magnetic Resonance Imaging at 7 Tesla

Published on: January 6, 2019

[Functional magnetic resonance imaging with ultra-high fields].

C Windischberger1, F P S Fischmeister, V Schöpf

  • 1Exzellenzzentrum Hochfeld-MR, Medizinische Universität Wien, Lazarettgasse 14, A-1090, Wien, Osterreich. christian.windischberger@meduniwien.ac.at

Der Radiologe
|December 17, 2009
PubMed
Summary
This summary is machine-generated.

Ultra-high field strength functional MRI (fMRI) offers enhanced accuracy for brain imaging. This study explores methods to push fMRI resolution limits using 7 Tesla systems, addressing associated challenges.

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Last Updated: Jun 17, 2026

Cardiac Magnetic Resonance Imaging at 7 Tesla
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Published on: January 6, 2019

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High-resolution Functional Magnetic Resonance Imaging Methods for Human Midbrain
10:06

High-resolution Functional Magnetic Resonance Imaging Methods for Human Midbrain

Published on: May 10, 2012

Area of Science:

  • Neuroimaging
  • Magnetic Resonance Imaging

Context:

  • Functional magnetic resonance imaging (fMRI) is the leading non-invasive technique for brain function mapping.
  • Advancements in 4 Tesla and above MRI systems enable higher precision in studying neuronal activity.

Purpose:

  • To present approaches for enhancing fMRI spatial and temporal resolution using ultra-high field strengths.
  • To discuss challenges and solutions related to 7 Tesla MRI studies for improved brain imaging.

Summary:

  • Explores methods to expand fMRI resolution limits using 7 Tesla studies.
  • Leverages improved sensitivity and specificity of ultra-high field MRI.
  • Addresses challenges inherent in ultra-high magnetic field applications.

Impact:

  • Potential to significantly advance non-invasive brain function localization.
  • Enables more accurate and detailed study of neuronal activation patterns.
  • Provides insights into overcoming technical hurdles in advanced neuroimaging.