Functional and structural MR imaging in neuropsychiatric disorders, Part 1: imaging techniques and their application...

Area of Science:

• Neuroimaging
• Neuropsychiatry
• Radiology

Background:

• Advanced Magnetic Resonance (MR) imaging techniques are increasingly applied to study neuropsychiatric disorders.
• Functional MRI (fMRI) assesses brain function, while Diffusion Tensor Imaging (DTI) and Voxel-Based Morphometry (VBM) investigate structural properties of gray matter (GM) and white matter (WM).
• These methods offer neurobiological insights into brain architecture, function, and potential diagnostic markers.

Purpose of the Study:

• To review the principles of functional and structural MR imaging.
• To summarize key findings in Mild Cognitive Impairment (MCI), Alzheimer's Disease (AD), autism, and schizophrenia.
• To discuss current applications, limitations, and future directions of MR imaging in neuroimaging.

Main Methods:

• Review of functional MR imaging (fMRI) principles.
• Review of structural MR imaging techniques including Diffusion Tensor Imaging (DTI) and Voxel-Based Morphometry (VBM).
• Synthesis of major findings from studies on MCI, AD, autism, and schizophrenia.

Main Results:

• fMRI identifies disease-specific alterations in brain function.
• DTI and VBM reveal structural changes in gray and white matter.
• MR imaging provides correlates for brain architecture, function, and potential diagnostic markers.

Conclusions:

• MR imaging techniques are valuable tools for understanding neuropsychiatric disorders.
• These methods aid in evaluating therapeutic approaches and early diagnosis.
• Future prospects involve refining applications and overcoming current limitations in MR neuroimaging.