Authors
Amy Kuceyeski, Babak B Navi, Hooman Kamel, Ashish Raj, Norman Relkin, Joan Toglia, Costantino Iadecola, Michael O'dell
Publication date
2016/7
Journal
Human brain mapping
Volume
37
Issue
7
Pages
2587-2601
Description
In this study, models based on quantitative imaging biomarkers of post‐stroke structural connectome disruption were used to predict six‐month outcomes in various domains. Demographic information and clinical MRIs were collected from 40 ischemic stroke subjects (age: 68.1 ± 13.2 years, 17 female, NIHSS: 6.8 ± 5.6). Diffusion‐weighted images were used to create lesion masks, which were uploaded to the Network Modification (NeMo) Tool. The NeMo Tool, using only clinical MRIs, allows estimation of connectome disruption at three levels: whole brain, individual gray matter regions and between pairs of gray matter regions. Partial Least Squares Regression models were constructed for each level of connectome disruption and for each of the three six‐month outcomes: applied cognitive, basic mobility and daily activity. Models based on lesion volume were created for comparison. Cross‐validation …
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