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Imaging of diffusion and microcirculation with gradient sensitization: design, strategy, and significance
D Le Bihan1, R Turner, C T Moonen
1Diagnostic Radiology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892.
Journal of Magnetic Resonance Imaging : JMRI
|January 1, 1991
Summary
Magnetic resonance imaging (MRI) advances now allow measurement of diffusion and blood perfusion. This summary details methods, challenges, and clinical applications of diffusion and perfusion MRI.
Area of Science:
- Medical Imaging
- Biophysics
- Neuroscience
Background:
- Magnetic resonance (MR) techniques are crucial for non-invasively assessing biological tissues.
- Diffusion and perfusion are key physiological processes that significantly impact the MR signal.
- Understanding these processes aids in diagnosing and monitoring various medical conditions.
Purpose of the Study:
- To summarize recent advancements in magnetic resonance imaging for diffusion and perfusion.
- To present various imaging methods, their pros and cons, and associated challenges.
- To outline the clinical and biological applications of diffusion and perfusion MRI.
Main Methods:
- Review of conventional spin-echo, stimulated-echo, gradient-echo, and echo-planar imaging techniques.
- Discussion of gradient sensitization for diffusion and perfusion measurement.
- Analysis of hardware and software challenges in diffusion/perfusion imaging.
Main Results:
- Detailed presentation of different MR methods for diffusion and perfusion imaging.
- Identification of specific difficulties in in vivo studies and data analysis.
- Outline of potential biological and clinical applications with examples.
Conclusions:
- Diffusion and perfusion MRI are powerful tools with significant clinical potential.
- Overcoming technical challenges is key to broader adoption and application.
- Continued research promises further refinement and expanded uses in medicine.