Current contribution of diffusion tensor imaging in the evaluation of diffuse axonal injury

Area of Science:

• Neuroscience
• Radiology
• Medical Imaging

Background:

• Traumatic brain injury (TBI) is a leading cause of death and disability in young adults.
• Diffuse axonal injury (DAI) is a common and severe consequence of TBI, often underdiagnosed with conventional imaging.
• Survivors of TBI frequently experience long-term functional deficits.

Purpose of the Study:

• To review the current contribution of advanced diffusion tensor imaging (DTI) analytical methods in understanding DAI pathophysiology and prognosis.
• To provide a reference for researchers and clinicians involved in TBI care and study design.
• To clarify the role of DTI in TBI assessment for allied health professionals.

Main Methods:

• Comprehensive literature search in PubMed.
• Keywords used: "traumatic brain injury", "diffuse axonal injury", and "diffusion tensor imaging".
• Focus on state-of-the-art DTI analytical methods.

Main Results:

• Conventional neuroimaging often under-recognizes DAI.
• DTI provides critical information on white matter integrity beyond standard MRI sequences.
• Various DTI analytical methods enhance the understanding of DAI.

Conclusions:

• DTI is essential for accurate DAI diagnosis and prognosis assessment in TBI patients.
• Advanced DTI techniques improve the understanding of DAI pathophysiology.
• This review serves as a guide for future research and clinical practice in TBI management.