作者
Simona Schiavi, Maria Petracca, Matteo Battocchio, Mohamed M El Mendili, Swetha Paduri, Lazar Fleysher, Matilde Inglese, Alessandro Daducci
发表日期
2020/8/1
期刊
Human Brain Mapping
卷号
41
期号
11
页码范围
2951-2963
出版商
John Wiley & Sons, Inc.
简介
Graph theory and network modelling have been previously applied to characterize motor network structural topology in multiple sclerosis (MS). However, between‐group differences disclosed by graph analysis might be primarily driven by discrepancy in density, which is likely to be reduced in pathologic conditions as a consequence of macroscopic damage and fibre loss that may result in less streamlines properly traced. In this work, we employed the convex optimization modelling for microstructure informed tractography (COMMIT) framework, which, given a tractogram, estimates the actual contribution (or weight) of each streamline in order to optimally explain the diffusion magnetic resonance imaging signal, filtering out those that are implausible or not necessary. Then, we analysed the topology of this ‘COMMIT‐weighted sensory‐motor network’ in MS accounting for network density. By comparing with standard …
引用总数
20202021202220232024161195