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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...

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Related Experiment Video

Updated: Jun 6, 2026

Multiple-mouse Neuroanatomical Magnetic Resonance Imaging
09:08

Multiple-mouse Neuroanatomical Magnetic Resonance Imaging

Published on: February 27, 2011

Quantitative neuromorphometry using magnetic resonance histology.

G Allan Johnson1, Alexandra Badea, Yi Jiang

  • 1Duke Center for In Vivo Microscopy, Durham, NC27710, USA. gjohnson@duke.edu

Toxicologic Pathology
|December 2, 2010
PubMed
Summary
This summary is machine-generated.

Magnetic resonance histology (MRH) uses advanced MRI techniques to image fixed brains in 3D at high resolution. This method minimizes distortion, enabling precise volume measurements for neuropathology research.

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Area of Science:

  • Neuropathology
  • Biomedical Imaging
  • Neuroscience

Background:

  • Clinical Magnetic Resonance Imaging (MRI) is widely used.
  • Neuropathology requires high-resolution imaging of tissue specimens.
  • Existing methods for brain tissue imaging have limitations in resolution and potential distortion.

Purpose of the Study:

  • To adapt MRI for neuropathological applications with significantly increased spatial resolution.
  • To develop Magnetic Resonance Histology (MRH) for routine 3D imaging of fixed brains.
  • To enable precise volumetric measurements of neural structures.

Main Methods:

  • Utilized technical advances: higher magnetic fields, sensitive receivers, and advanced encoding.
  • Developed Magnetic Resonance Histology (MRH) for high-resolution 3D imaging of fixed brains.
  • Employed active staining with paramagnetic contrast agents to reduce scan times.

Main Results:

  • Achieved over 100,000x increase in spatial resolution compared to clinical MRI.
  • Enabled routine 3D isotropic imaging of fixed brains within the cranium.
  • Reduced scan times by over 8 times through active staining.
  • Minimized tissue shrinkage and distortion by imaging hydrated tissue.
  • Demonstrated high precision and accuracy in volume measurements of neural structures.

Conclusions:

  • Magnetic Resonance Histology (MRH) provides a powerful tool for neuropathological analysis.
  • MRH offers significant advantages in 3D visualization and volumetric quantification of neural tissues.
  • This technique promises value in guiding traditional sectioning and assessment in neuropathology.