Evidence map›Paper›PMID 39451969›Full record

ArticleBrain sciences2024

Assessing Language Lateralization through Gray Matter Volume: Implications for Preoperative Planning in Brain Tumor Surgery.

Daniel Solomons, Maria Rodriguez-Fernandez, Francisco Mery-Muñoz, Leonardo Arraño-Carrasco, Francisco Sahli Costabal, Carolina Mendez-Orellana

Abstract read
In one paragraph

Article in Brain sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Daniel SolomonsInstitute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.ORCID 0009-0009-8613-0802
Maria Rodriguez-FernandezInstitute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.ORCID 0000-0003-1966-2920
Francisco Mery-MuñozDepartment of Neurosurgery, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.ORCID 0000-0002-3887-5537
Leonardo Arraño-CarrascoDepartment of Radiology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
Francisco Sahli CostabalInstitute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
Carolina Mendez-OrellanaSpeech and Language Pathology Department, Health Sciences School, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.ORCID 0000-0001-5217-9725

Funding

Agencia Nacional de Investigación y Desarrollo ACT210083Agencia Nacional de Investigación y Desarrollo ICN2021_004Fondo Nacional de Desarrollo Científico y Tecnológico N° 111150429Pontificia Universidad Catolica de Chile PUENTE VRI 2022-4
6 · The paper itself

Abstract

BACKGROUND/

objectivesFunctional MRI (fMRI) is widely used to assess language lateralization, but its application in patients with brain tumors can be hindered by cognitive impairments, compensatory neuroplasticity, and artifacts due to patient movement or severe aphasia. Gray matter volume (GMV) analysis via voxel-based morphometry (VBM) in language-related brain regions may offer a stable complementary approach. This study investigates the relationship between GMV and fMRI-derived language lateralization in healthy individuals and patients with left-hemisphere brain tumors, aiming to enhance accuracy in complex cases.

methodsThe MRI data from 22 healthy participants and 28 individuals with left-hemisphere brain tumors were analyzed. Structural T1-weighted and functional images were obtained during three language tasks. Language lateralization was assessed based on activation in predefined regions of interest (ROIs), categorized as typical (left) or atypical (right or bilateral). The GMV in these ROIs was measured using VBM. Linear regressions explored GMV-lateralization associations, and logistic regressions predicted the lateralization based on the GMV.

resultsIn the healthy participants, typical left-hemispheric language dominance correlated with higher GMV in the left pars opercularis of the inferior frontal gyrus. The brain tumor participants with atypical lateralization showed increased GMV in six right-hemisphere ROIs. The GMV in the language ROIs predicted the fMRI language lateralization, with AUCs from 80.1% to 94.2% in the healthy participants and 78.3% to 92.6% in the tumor patients.

conclusionsGMV analysis in language-related ROIs effectively complements fMRI for assessing language dominance, particularly when fMRI is challenging. It correlates with language lateralization in both healthy individuals and brain tumor patients, highlighting its potential in preoperative language mapping. Further research with larger samples is needed to refine its clinical utility.

Indexed as

brain tumorgray matter volumelanguage lateralizationregression analysis

Identifiers

PMID39451969
PMCPMC11506207

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