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SM ISO690:2012 CIOLAC, Dumitru. Reorganizarea și reziliența rețelelor cerebrale în epilepsia focală. In: Congresul consacrat aniversării a 75-a de la fondarea Universității de Stat de Medicină şi Farmacie „Nicolae Testemiţanu”, 21-23 octombrie 2020, Chişinău. Chişinău: USMF, 2020, p. 338. |
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Congresul consacrat aniversării a 75-a de la fondarea Universității de Stat de Medicină şi Farmacie „Nicolae Testemiţanu” 2020 | |||||||||
Congresul "Congresul consacrat aniversării a 75-a de la fondarea Universității de Stat de Medicină şi Farmacie „Nicolae Testemiţanu”" Chişinău, Moldova, 21-23 octombrie 2020 | |||||||||
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Pag. 338-338 | |||||||||
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Background. Epilepsy has been labeled as a network disorder. Advanced computational tools have granted a non-invasive window to explore the brain networks in epilepsy. Studying the reorganization of brain networks can aid the modeling of network topology alterations linked to focal epilepsy. Objective of the study. To explore the reorganization and resilience of brain networks in patients with focal epilepsy. Material and Methods. In 40 patients with focal epilepsy and 40 healthy subjects, structural 3T T1-weighted MR images were acquired and processed by using FreeSurfer. Cortical thickness values were used for the reconstruction of morphometric networks. The topological organization and resilience of brain networks was assessed by applying the graph theoretical analysis. Results. In patients as compared to healthy, the topological organization of brain networks was marked by higher clustering coefficient, local efficiency and path length (all p<0.05). The network hubs (i.e. brain regions important for network maintenance) had a different distribution in patients (left superior temporal, right paracentral) and healthy subjects (left anterior cingulate, right superior temporal). The brain networks in patients exhibited lower resilience (p<0.05) to targeted attacks (i.e. removal of brain regions depending on their importance for network organization) and similar resilience (p>0.05) to random attacks (i.e. random removal of brain regions). Conclusion. Brain networks in focal epilepsy were characterized by increased segregability and decreased integrability. Reduced resilience to targeted attacks in patients as compared to healthy subjects suggests an unequal importance of brain regions for network maintenance in the studied groups. |
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Cuvinte-cheie epilepsy, networks, reorganization, hubs, resilience, epilepsie, rețele, reorganizare, hub-uri, reziliență |
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