Imaging in amyotrophic lateral sclerosis: MRI and PET

Area of Science:

• Neurology
• Radiology
• Medical Imaging

Background:

• Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease.
• Neuroimaging, including MRI and PET, is crucial for understanding ALS pathology.

Purpose of the Study:

• To review current advancements in neuroimaging for ALS assessment.
• To explore the clinical and neuroscientific potential of these techniques.

Main Methods:

• Focus on diffusion-weighted imaging (DWI) for MRI.
• Utilizing fluorodeoxyglucose (FDG)-PET and novel radiotracers.
• Application of multivariate analysis for patient discrimination and prognosis.

Main Results:

• MRI-based DWI provides reliable measures for ALS disease progression monitoring.
• FDG-PET shows improved clinical utility in discriminating ALS patients and for prognostic assessment.
• Novel radiotracers demonstrate promising results in ongoing investigations.

Conclusions:

• Neuroimaging consistently reveals characteristic structural and functional changes in ALS.
• Advancing neuroimaging techniques enable detailed investigation of ALS neurodegeneration.
• Future multicenter studies and novel methodologies may establish neuroimaging as pivotal for ALS diagnosis and prognosis.