Ventricular volume and cognitive deficit: a computed tomographic study.

Area of Science:

• Neurology
• Radiology
• Geriatrics

Background:

• Alzheimer disease is a progressive neurodegenerative disorder.
• Enlargement of brain ventricles is a potential biomarker for neurodegeneration.

Purpose of the Study:

• To investigate the relationship between ventricular volume and cognitive function in older adults.
• To assess if increased ventricular volume is indicative of Alzheimer disease.

Main Methods:

• 35 patients with suspected Alzheimer disease and 29 healthy controls (age > 60) underwent clinical evaluation, psychometric testing, and CT scans.
• CT scans were used to calculate composite ventricular volume, corrected for brain size.
• Statistical analysis was performed to compare ventricular volumes and cognitive scores between groups.

Main Results:

• Patients with Alzheimer disease had significantly larger composite ventricular volumes (7.5%) compared to normal controls (5.2%) (p < .009).
• A significant positive association was found between increasing ventricular volume and the severity of cognitive impairment (p < .05).

Conclusions:

• Elevated ventricular volume is a significant indicator in the presumptive diagnosis of Alzheimer disease.
• Ventricular enlargement may serve as a quantifiable marker for cognitive decline in aging populations.