Cited by 123Dementia and Cognitive Impairment ResearchAdvanced Neuroimaging Techniques and ApplicationsAlzheimer's disease research and treatments

Combined volumetry and DTI in subcortical structures of mild cognitive impairment and Alzheimer’s disease patients.

Cherubini, Andrea, Péran, Patrice, Spoletini, Ilaria, Di Paola, Margherita, Di Iulio, Fulvia, Hagberg, Gisela Elizabeth, Sancesario, Giuseppe, Gianni, Walter +4 more·2010·Journal of Alzheimer s Disease

Abstract

The aim of this work was to investigate the hypothesis that multimodal MRI is able to detect the progressive disruption of volume and microstructure of subcortical structures in patients with amnestic mild cognitive impairment (a-MCI) and mild Alzheimer's disease (AD) in comparison with healthy controls (CTRL). We combined volumetric and diffusion tensor imaging (DTI) techniques in a cross-sectional study including 30 a-MCI, 30 AD patients, and 30 age-matched CTRL. We employed a fully automated model-based segmentation algorithm on 3 Tesla MRI anatomical images and accurate coregistration of DTI to anatomical images to extract regional values of DTI parameters. Both the hippocampi significantly and progressively decreased in volume from CTRL through MCI to AD. Both the thalami showed a progressive and significant decrease in volume from CTRL to AD. Mean diffusivity (MD) values increased progressively across the three groups in the bilateral hippocampus, amygdala, and in the right caudate. No differences in fractional anisotropy (FA) values were found. Two distinct but overlapping patterns of progression of structural (i.e., atrophy) and microstructural (i.e., MD increase) damage were observed. Particularly, the pattern of atrophy was mirrored by the increasing value of the averaged MD, which provided a further indicator of subtle tissue disruption in the hippocampal structure in mild AD patients. Combining different MRI modalities can allow identifying sensitive indicators of the subtle pathogenic mechanisms that occur in subcortical areas of AD patients.

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Registry

Crossref · 10.3233/jad-2010-091186

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  • Reduced FA and increased MD in the hippocampus were reported in many human studies, probably attributed to increased extracellular space volume and neurodegeneration.

    “Reduced FA and increased MD in hippocampus were reported in many of these human studies, probably attributed to increased extracellular space volume and neurodegeneration (Muller et al., 2007; Cherubini et al., 2010; Hong et al., 2013; Nowrangi et al., 2013).”
  • Most studies using diffusion tensor imaging data of healthy older and Alzheimer's disease participants did not consider partial volume effects at all.

    “However, most of the studies using DTI data of healthy older and AD participants did not consider PVE at all (Cherubini et al., 2010, Douaud et al., 2013, Eustache et al., 2016, Müller et al., 2007).”
  • Previous studies reported increases of hippocampal mean diffusivity and whole brain gray matter mean diffusivity in subjects with mild cognitive impairment compared to healthy controls.

    “Previous studies on GM MD in AD reported increases of hippocampal MD and whole brain GM MD in subjects with mild cognitive impairment (MCI) as compared to healthy controls (Cherubini et al., 2010, Eustache et al., 2016, Fellgiebel et al., 2004, Müller et al., 2005, Scola et al., 2010)”
  • Left and right hippocampi and the posterior cingulate cortex were chosen as regions of interest following the literature on peak differences in regional mean diffusivity and volumes in Alzheimer's disease.

    “Left and right hippocampi as well as the posterior cingulate cortex (PCC) were chosen as regions of interest following the literature on peak differences in regional MD and volumes in AD (Cherubini et al., 2010, Eustache et al., 2016, Rose et al., 2008).”
  • The MCI subjects of the sample were not uniquely amnestic MCI, making the sample more heterogeneous than MCI subgroups in other studies.

    “As a limitation, the MCI subjects of our sample were not uniquely amnestic MCI. Thus, our sample is more heterogeneous than the MCI subgroups in other studies”

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Authors
Cherubini, A., Péran, P., Spoletini, I., Di Paola, M., Di Iulio, F., Hagberg, G. E., Sancesario, G., Gianni, W., Bossù, P., Caltagirone, C., Sabatini, U., & Spalletta, G.
Affiliations
  • Fondazione Santa Lucia (IT)
  • IRCCS Santa Lucia Foundation, Rome, Italy
  • University of Rome Tor Vergata (IT)
  • Istituti di Ricovero e Cura a Carattere Scientifico (IT)
Corresponding author
Spalletta, Gianfranco
Venue
Journal of Alzheimer s Disease
Published
2010-03-11
Volume
19
Issue
4
Pages
1273-1282
ISSN
  • 1387-2877 (ISSN-L)
  • 1875-8908
OpenAlex
W1666202957
Cited by
123
References
39
Citations by year
2026: 3 · 2025: 3 · 2024: 3 · 2023: 7 · 2022: 4 · 2021: 4 · 2020: 7 · 2019: 5 · 2018: 9 · 2017: 11 · 2016: 7 · 2015: 15 · 2014: 9 · 2013: 13 · 2012: 13
FWCI
7.85
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Alzheimer s Disease (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • Cineca Institutional Research Information System (Tor Vergata University) (submittedVersion)
Funders
Ministero della Salute
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
amnestic mild cognitive impairment, Alzheimer's disease
MeSH terms
Aged, Alzheimer Disease, Atrophy, Brain, Cognition Disorders, Female, Humans, Functional Laterality, Male, Neuropsychological Tests, Severity of Illness Index, Thalamus, Diffusion Tensor Imaging

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