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Artifacts and pitfalls in diffusion MRI

Denis Le Bihan1, Cyril Poupon, Alexis Amadon

  • 1Anatomical and Functional Neuroimaging Laboratory, Service Hospitalier Frédéric Joliot, Commissariat à l'Energie Atomique, Orsay, France. denis.lebihan@cea.fr

Journal of Magnetic Resonance Imaging : JMRI
|August 10, 2006
PubMed

Insights

Diffusion MRI is valuable but prone to artifacts like eddy currents and motion sensitivity. This review covers these diffusion MRI challenges and mitigation strategies for improved imaging quality.

Area of Science:

  • Medical Imaging
  • Neuroscience

Background:

  • Diffusion MRI (dMRI) is a vital neuroimaging technique.
  • dMRI is susceptible to artifacts impacting image quality and interpretation.
  • Common MRI artifacts are compounded by dMRI-specific issues.

Purpose of the Study:

  • To review common and dMRI-specific artifacts.
  • To discuss challenges related to gradient hardware, eddy currents, and motion sensitivity.
  • To introduce strategies for mitigating dMRI artifacts.

Main Methods:

  • Qualitative review of diffusion MRI artifacts.
  • Discussion of challenges in gradient hardware performance.
  • Exploration of motion sensitivity and eddy current effects.

Main Results:

  • Identified specific artifacts in diffusion MRI, including eddy currents and motion sensitivity.
  • Highlighted the impact of MRI gradient hardware on dMRI data quality.
  • Presented an overview of artifact mitigation techniques.

Conclusions:

  • Diffusion MRI artifacts require careful consideration for accurate neuroimaging.
  • Understanding and addressing artifacts like eddy currents and motion is crucial.
  • Developed strategies can enhance the reliability of diffusion MRI data.

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