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Everything about Diffusion-weighted magnetic resonance imaging

Method of utilizing water in magnetic resonance imaging

Diffusion-weighted magnetic resonance imaging is the use of specific MRI sequences as well as software that generates images from the resulting data that uses the diffusion of water molecules to generate contrast in MR images. It allows the mapping of the diffusion process of molecules, mainly water, in biological tissues, in vivo and non-invasively. Molecular diffusion in tissues is not random, but reflects interactions with many obstacles, such as macromolecules, fibers, and membranes. Water molecule diffusion patterns can therefore reveal microscopic details about tissue architecture, either normal or in a diseased state. A special kind of DWI, diffusion tensor imaging (DTI), has been used extensively to map white matter tractography in the brain. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Diffusion-weighted magnetic resonance imagingA 5-minute orientation
  2. Skim a recent paper: Confined Diffusion Strategy for Customizing Magnetic Coupling Spaces to Enhance Low‐frequency Electromagnetic Wave AbsorptionInfluential work since 2022
  3. Pick up a classic book: Extra-Cranial Applications of Diffusion-Weighted MRIThe most-reprinted book on the subject
  4. Read the landmark paper: Effects of Diffusion on Free Precession in Nuclear Magnetic Resonance ExperimentsCited 5,904 times
  5. Go sideways: Fractional anisotropyA closely related topic
  6. Go sideways: TractographyA closely related topic

📖 Definitions

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🗂️ The subject at a glance

  1. Introduction
  2. Mechanism
  3. ADC image
  4. Diffusion tensor imaging
  5. Applications
  6. Research
  7. Explanatory notes

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

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🔗 Related topics