Brain volume is a key biomarker in Alzheimer’s disease (AD) and is closely associated with the progression of the disease
-AD is characterized by progressive brain shrinkage (atrophy)
-Hippocampus: One of the earliest and most affected areas; crucial for memory formation.
-Medial Temporal Lobe: Including the entorhinal cortex; important in converting short-term to long-term memory.
-Parietal and Frontal Lobes: Atrophy spreads here as the disease progresses, affecting language, spatial awareness, and executive function.
-MRI imaging is widely used to measure brain volume loss.
-Rate of volume loss can predict cognitive decline and transition from:
-Normal aging → Mild Cognitive Impairment (MCI) → Alzheimer’s Disease.
Rate of Brain Volume Loss
Population Group Estimated Brain Volume Loss / Year
Healthy aging adults ~0.2–0.5%
MCI patients ~1–2%
AD patients ~2–3% or more
(Will delete Record if Target field = "Delete") Home