Resting-state functional magnetic resonance imaging (rs-fMRI) is commonly employed to study changes in functional brain connectivity. Recently, the hypothesis of a brain involvement in primary open angle glaucoma has sprung interest for neuroimaging studies in this pathology. The purpose of this study is to evaluate a putative reorganization of brain networks in glaucomatous patients through graph-theoretical measures of integration, segregation and centrality by exploiting a multivariate networks association measure and a recently introduced global and local brain network disruption index. Nineteen glaucoma patients and sixteen healthy control subjects (age: 50 - 76, mean 61 years) underwent rs-fMRI examination at 3T. After preprocessing, rs-fMRI time series were parcellated into 116 regions (AAL atlas), adjacency matrices were computed based on partial correlations and graph-theoretical measures of integration, segregation and centrality as well as group-wise and subject-wise disruption index estimates were generated for all subjects. We found that the group-wise disruption index was negative and statistically different from 0 in for all graph theoretical metrics. Additionally, statistically significant group-wise differences in subject-wise disruption indexes were found in all local metrics. The differences in local network measures highlight cerebral reorganization of brain networks in glaucoma patients, supporting the interpretation of glaucoma as central nervous system disease, likely part of the heterogeneous group of recently described disconnection syndromes.

Minosse, S., Garaci, F., Martucci, A., Lanzafame, S., Di Giuliano, F., Picchi, E., et al. (2019). Disruption of brain network organization in primary open angle glaucoma. In Proceedings of the 41. Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS (pp.4338-4341). IEEE [10.1109/EMBC.2019.8857290].

Disruption of brain network organization in primary open angle glaucoma

Garaci F.;Martucci A.;Cesareo M.;Mancino R.;Guerrisi M.;Floris R.;Nucci C.;Toschi N.
2019-01-01

Abstract

Resting-state functional magnetic resonance imaging (rs-fMRI) is commonly employed to study changes in functional brain connectivity. Recently, the hypothesis of a brain involvement in primary open angle glaucoma has sprung interest for neuroimaging studies in this pathology. The purpose of this study is to evaluate a putative reorganization of brain networks in glaucomatous patients through graph-theoretical measures of integration, segregation and centrality by exploiting a multivariate networks association measure and a recently introduced global and local brain network disruption index. Nineteen glaucoma patients and sixteen healthy control subjects (age: 50 - 76, mean 61 years) underwent rs-fMRI examination at 3T. After preprocessing, rs-fMRI time series were parcellated into 116 regions (AAL atlas), adjacency matrices were computed based on partial correlations and graph-theoretical measures of integration, segregation and centrality as well as group-wise and subject-wise disruption index estimates were generated for all subjects. We found that the group-wise disruption index was negative and statistically different from 0 in for all graph theoretical metrics. Additionally, statistically significant group-wise differences in subject-wise disruption indexes were found in all local metrics. The differences in local network measures highlight cerebral reorganization of brain networks in glaucoma patients, supporting the interpretation of glaucoma as central nervous system disease, likely part of the heterogeneous group of recently described disconnection syndromes.
Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 41.
Berlin (Germany)
2019
41.
IEEE
Rilevanza internazionale
2019
Settore FIS/07 - FISICA APPLICATA (A BENI CULTURALI, AMBIENTALI, BIOLOGIA E MEDICINA)
Settore MED/36 - DIAGNOSTICA PER IMMAGINI E RADIOTERAPIA
Settore MED/30 - MALATTIE APPARATO VISIVO
English
Intervento a convegno
Minosse, S., Garaci, F., Martucci, A., Lanzafame, S., Di Giuliano, F., Picchi, E., et al. (2019). Disruption of brain network organization in primary open angle glaucoma. In Proceedings of the 41. Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS (pp.4338-4341). IEEE [10.1109/EMBC.2019.8857290].
Minosse, S; Garaci, F; Martucci, A; Lanzafame, S; Di Giuliano, F; Picchi, E; Cesareo, M; Mancino, R; Guerrisi, M; Floris, R; Nucci, C; Toschi, N
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/232554
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