[Functional imaging for brain tumors (perfusion, DTI and MR spectroscopy)]

Area of Science:

• Neuroimaging
• Oncology
• Medical Diagnostics

Context:

• Brain tumors present complex diagnostic challenges.
• Conventional MRI has limitations in characterizing tumor biology and extent.
• Functional MRI offers advanced insights beyond anatomical information.

Purpose:

• To review the utility of functional MRI techniques in brain tumor diagnostics.
• To explore the applications of perfusion MRI (PWI), diffusion MRI (DWI/DTI), and MR spectroscopy (H-MRS).
• To highlight how these methods improve tumor grading, treatment planning, and outcome prediction.

Summary:

• Perfusion MRI (PWI) aids in grading, differentiating, and planning treatment for brain tumors, optimizing post-treatment monitoring.
• Diffusion MRI (DWI/DTI) visualizes white matter tracts and tumor characteristics, though DTI fiber tracking has limitations.
• MR spectroscopy (H-MRS) provides metabolic information crucial for differentiating tumor types, grading gliomas, and distinguishing neoplastic from non-neoplastic lesions.

Impact:

• Functional MRI techniques significantly improve the accuracy and detail of brain tumor diagnosis.
• These advanced imaging methods enable more personalized and effective treatment strategies.
• Enhanced diagnostic capabilities lead to better prediction of disease progression and patient prognosis.