Basic concepts of advanced MRI techniques.

Area of Science:

• Medical Imaging
• Biophysics
• Neuroscience

Background:

• Advanced magnetic resonance (MR) techniques are crucial for understanding physiological changes.
• Techniques include diffusion-weighted, perfusion, magnetization transfer, functional MRI, and MR spectroscopy.
• These methods present implementation and interpretation challenges in clinical practice.

Purpose of the Study:

• To provide an overview of advanced MR techniques sensitive to diffusion, flow, magnetization transfer, and local field inhomogeneities.
• To facilitate understanding of clinical applications by providing background on these advanced MR methods.
• To highlight the capability of these techniques in providing quantitative estimates of sub-voxel characteristics.

Main Methods:

• The review focuses on MR techniques sensitized to diffusion, flow, magnetization transfer, and local field inhomogeneities.
• It covers diffusion-weighted, perfusion, magnetization transfer, functional MRI, and MR spectroscopy.
• The review assumes basic MR physics knowledge and focuses on clinical relevance.

Main Results:

• These advanced MR techniques offer quantitative insights into structural and functional characteristics.
• They can assess properties below the voxel resolution.
• The review facilitates understanding of complex clinical contributions using these methods.

Conclusions:

• Advanced MR techniques provide valuable quantitative data for clinical practice.
• Understanding these methods is key to interpreting complex physiological changes.
• This overview serves as a foundation for further clinical MR research and application.