Cited by 180Dementia and Cognitive Impairment ResearchAdvanced Neuroimaging Techniques and ApplicationsAlzheimer's disease research and treatments

White matter damage in frontotemporal lobar degeneration spectrum

Agosta, F., Scola, E., Canu, E., Marcone, A., Magnani, G., Sarro, L., Copetti, M., Caso, F. +5 more·2012·Cerebral Cortex

Abstract

White matter (WM) tract damage was assessed in patients with the behavioral variant frontotemporal dementia (bvFTD) and the 3 primary progressive aphasia (PPA) variants and compared with the corresponding brain atrophy patterns. Thirteen bvFTD and 20 PPA patients were studied. Tract-based spatial statistics and voxel-based morphometry were used. Patients with bvFTD showed widespread diffusion tensor magnetic resonance imaging (DT MRI) abnormalities affecting most of the WM bilaterally. In PPA patients, WM damage was more focal and varied across the 3 syndromes: left frontotemporoparietal in nonfluent, left frontotemporal in semantic, and left frontoparietal in logopenic patients. In each syndrome, DT MRI changes extended beyond the topography of gray matter loss. Left uncinate damage was the best predictor of frontotemporal lobar degeneration diagnosis versus controls. DT MRI measures of the anterior corpus callosum and left superior longitudinal fasciculus differentiated bvFTD from nonfluent cases. The best predictors of semantic PPA compared with both bvFTD and nonfluent cases were diffusivity abnormalities of the left uncinate and inferior longitudinal fasciculus. This study provides insights into the similarities and differences of WM damage in bvFTD and PPA variants. DT MRI metrics hold promise to serve as early markers of WM integrity loss that only at a later stage may be detectable by volumetric measures.

Integrity signals

Registry

Crossref · 10.1093/cercor/bhr288

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  • The study's group-level statistical findings can be compared with previous research.

    “Moreover, our group-level statistical findings can be compared with previous research (Agosta et al., 2012; Bharti et al., 2017; Iaccarino et al., 2015; Popal et al., 2020; Tovar-Moll et al., 2014; Upadhyay et al., 2016; Whitwell et al., 2009).”
  • The multimodal approach helps to provide information on specific functional and structural alterations capturing differential patterns in FTD.

    “However, the multimodal approach helps to provide information on specific functional and structural alterations capturing differential patterns in FTD (Agosta et al., 2012; Nguyen et al., 2013; Reyes et al., 2018; Whitwell, 2019).”
  • Raw structural connectivity models showed alterations in the uncinate fasciculus, superior longitudinal fasciculus, corpus callosum, dentatorubrothalamic tract, and inferior fronto-occipital fasciculus.

    “we found alterations in the uncinate fasciculus (Agosta et al., 2012; Daianu et al., 2016; Iaccarino et al., 2015; Nguyen et al., 2013), superior longitudinal fasciculus (Agosta et al., 2012; Daianu et al., 2016), corpus callosum (Tovar-Moll et al., 2014), dentatorubrothalamic tract (Whitwell et al., 2011a), and inferior fronto-occipital fasciculus (Meijboom et al., 2017).”

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Authors
Agosta, F., Scola, E., Canu, E., Marcone, A., Magnani, G., Sarro, L., Copetti, M., Caso, F., Cerami, C., Comi, G., Cappa, S. F., Falini, A., & Filippi, M.
Affiliations
  • Vita-Salute San Raffaele University (IT)
  • IRCCS Ospedale San Raffaele (IT)
  • Casa Sollievo della Sofferenza (IT)
Venue
Cerebral Cortex
Published
2012-10-10
Volume
22
Issue
12
Pages
2705-2714
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2097764378
Cited by
180
References
51
Citations by year
2026: 12 · 2025: 8 · 2024: 5 · 2023: 9 · 2022: 15 · 2021: 11 · 2020: 12 · 2019: 13 · 2018: 12 · 2017: 15 · 2016: 12 · 2015: 15 · 2014: 19 · 2013: 13 · 2012: 9
FWCI
8.97
Type
journal article
Language
en
Open access
closed
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca - Università Vita-Salute San Raffaele (submittedVersion)
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
white matter injury, frontotemporal lobar degeneration, behavioral variant frontotemporal dementia, primary progressive aphasia, non-fluent aphasia, semantic dementia, logopenic primary progressive aphasia, uncinate fasciculus, inferior longitudinal fasciculus, corpus callosum, superior longitudinal fasciculus, diffusion tensor imaging, white matter integrity, brain atrophy patterns, early biomarkers
MeSH terms
Aged, Atrophy, Brain, Diagnosis, Differential, Female, Humans, Male, Middle Aged, Nerve Fibers, Myelinated, Sensitivity and Specificity, Reproducibility of Results, Aphasia, Primary Progressive, Diffusion Tensor Imaging, Frontotemporal Lobar Degeneration

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