Diffusion magnetic resonance imaging in the head and neck.

Area of Science:

• Radiology and Medical Imaging
• Biophysics
• Neuroscience

Background:

• Diffusion weighting (DW) is a distinct magnetic resonance imaging (MRI) contrast mechanism.
• DW imaging's sensitivity to molecular water motion is crucial for understanding physiology and pathophysiology.
• It is indispensable in neuroimaging due to its ability to detect subtle changes.

Purpose of the Study:

• To review the physical principles of DW imaging in the head and neck.
• To explain how DW imaging aids in diagnosing acute ischemia.
• To discuss its application in solving other related clinical problems.

Main Methods:

• Review of the physical principles underlying DW imaging.
• Explanation of water molecular motion sensitivity.
• Discussion of applications in head and neck pathology.

Main Results:

• DW imaging provides unique contrast based on molecular water diffusion.
• Altered water motion is a sensitive indicator of pathological conditions, notably acute ischemia.
• The technique is highly effective for neuroimaging applications.

Conclusions:

• DW imaging is a vital tool in head and neck radiology.
• Understanding its physical basis enhances diagnostic capabilities.
• It offers significant advantages in detecting and characterizing various pathologies.