Related Experiment Video
Updated: Jul 13, 2026

Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
Prevalence of subcortical vascular lesions and association with executive function in mild cognitive impairment
Background And Purpose:
Subcortical hyperintensities (SH) have not been systematically evaluated in mild cognitive impairment (MCI). We sought to describe their frequency and distribution, and to test their association with cognitive characteristics in MCI patients.
Methods:
We performed standardized neuropsychological tests and an MRI scan in 170 consecutive MCI patients. Medial temporal lobe atrophy and SH, including periventricular, lobar white matter, basal ganglia and infratentorial hyperintensities, were assessed with visual semiquantitative scales.
Results:
The median age was 68.1 years (range: 45.5 to 87.0), and the median Mini-Mental State Examination score 28.0 (range: 26.0 to 30.0). MCI subtypes were amnestic single domain (21.2%), amnestic multiple domain (52.3%), nonamnestic single domain (21.8%), and nonamnestic multiple domain (4.7%). SH were found in 157 patients (92.6%); periventricular hyperintensities (80.6%) and lobar white matter hyperintensities (83.5%) were the most prominent locations. There was no association between SH and MCI subtypes. Executive dysfunction was independently associated with SH (odds ratio=2.53, 95% CI: 1.20 to 5.32), periventricular hyperintensities (odds ratio=2.51, 95% CI: 1.13 to 5.55), and white matter hyperintensities (odds ratio=2.08, 95% CI: 1.01 to 4.25).
Conclusions:
The prevalence of SH is high in MCI patients, irrespective of MCI subtypes. SH (especially periventricular hyperintensities, and lobar white matter hyperintensities) are associated with executive dysfunction.
Insights
Subcortical hyperintensities (SH) are common in mild cognitive impairment (MCI). These brain changes, particularly in the periventricular and lobar white matter, are linked to executive dysfunction in MCI patients.
Area of Science:
- Neurology
- Neuroimaging
- Cognitive Science
Background:
- Subcortical hyperintensities (SH) prevalence and distribution in mild cognitive impairment (MCI) remain underexplored.
- This study aimed to systematically evaluate SH in MCI patients and their association with cognitive function.
Discussion:
- SH are highly prevalent in MCI patients, regardless of MCI subtype.
- Periventricular and lobar white matter hyperintensities are the most common locations of SH.
- Executive dysfunction shows a significant independent association with the presence of SH.
Key Insights:
- High prevalence of SH (92.6%) observed in 170 MCI patients.
- Periventricular (80.6%) and lobar white matter (83.5%) hyperintensities are the most frequent SH locations.
- Executive dysfunction is independently associated with SH, periventricular hyperintensities, and white matter hyperintensities.
Outlook:
- Further research into the specific mechanisms linking SH to executive dysfunction in MCI is warranted.
- Investigating the impact of SH on MCI progression and potential therapeutic interventions.
- Exploring the role of SH as a potential biomarker for cognitive decline in aging populations.
More Related Videos
12:50Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
Published on: April 14, 2014
12:28Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains
Published on: June 3, 2020
Related Concept Videos
Dementia l: Introduction
Dementia
The progression of dementia is generally gradual.
Alzheimer Disease l: Introduction
Alzheimer Disease ll: Pathophysiology
Alzheimer's Disease: Overview
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...
Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists