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Related Concept Videos

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).
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...
Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

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.
The Role of Diffusion in Respiration
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Related Experiment Video

Updated: Jul 20, 2026

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
09:33

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Published on: July 28, 2013

Principles of diffusion tensor imaging and its applications to basic neuroscience research.

Susumu Mori1, Jiangyang Zhang

  • 1Department of Radiology, Division of NMR, Johns Hopkins University, School of Medicine, 720 Rutland Avenue, Baltimore, MD 21205, USA. susumu@mri.jhu.edu

Neuron
|September 5, 2006
PubMed
Summary

Diffusion tensor imaging (DTI) is a noninvasive MRI technique that maps brain neural networks by visualizing axonal tracts. This method aids in understanding brain structure and function in health and disease.

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Last Updated: Jul 20, 2026

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Area of Science:

  • Neuroscience
  • Medical Imaging
  • Biophysics

Background:

  • The brain's complex neural networks are formed by billions of neurons communicating via axons.
  • Understanding structural connectivity is crucial for brain function research but limited by noninvasive imaging methods.
  • Axonal anatomy studies are essential for diagnosing neurological disorders and developmental research.

Purpose of the Study:

  • To explain the principles of Diffusion Tensor Imaging (DTI) methodologies.
  • To introduce applications of DTI in studying axonal tracts and neural networks.
  • To discuss the strengths, limitations, and future directions of DTI.

Main Methods:

  • Diffusion Tensor Imaging (DTI), a magnetic resonance imaging (MRI) technique.
  • Measurement of macroscopic axonal organization in nervous system tissues.
  • Visualization of axonal tracts in various biological contexts.

Main Results:

  • DTI principles and methodologies are detailed.
  • Applications include visualizing axonal tracts in myelin and axonal injuries.
  • DTI is applied to human brain and mouse embryonic development studies.

Conclusions:

  • DTI offers a noninvasive approach to study axonal anatomy and brain structural connectivity.
  • The technique has potential applications in understanding neurological conditions and development.
  • Further research is needed to enhance DTI's capabilities and address its limitations.