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@ARTICLE{Bonkhoff:905340,
author = {Bonkhoff, Anna K and Rehme, Anne K and Hensel, Lukas and
Tscherpel, Caroline and Volz, Lukas J and Espinoza, Flor A
and Gazula, Harshvardhan and Vergara, Victor M and Fink,
Gereon R and Calhoun, Vince D and Rost, Natalia S and
Grefkes, Christian},
title = {{D}ynamic connectivity predicts acute motor impairment and
recovery post-stroke},
journal = {Brain communications},
volume = {3},
number = {4},
issn = {2632-1297},
address = {[Großbritannien]},
publisher = {Guarantors of Brain},
reportid = {FZJ-2022-00608},
pages = {fcab227},
year = {2021},
abstract = {Thorough assessment of cerebral dysfunction after acute
lesions is paramount to optimize predicting clinical
outcomes. We herebuilt random forest classifier-based
prediction models of acute motor impairment and recovery
post-stroke. Predictions relied onstructural and
resting-state fMRI data from 54 stroke patients scanned
within the first days of symptom onset. Functional
connectivitywas estimated via static and dynamic approaches.
Motor performance was phenotyped in the acute phase and 6
months later.A model based on the time spent in specific
dynamic connectivity configurations achieved the best
discrimination between patientswith and without motor
impairments (out-of-sample area under the curve, $95\%$
confidence interval: 0.6760.01). In contrast,patients with
moderate-to-severe impairments could be differentiated from
patients with mild deficits using a model based on
thevariability of dynamic connectivity (0.8360.01). Here,
the variability of the connectivity between ipsilesional
sensorimotor cortexand putamen discriminated the most
between patients. Finally, motor recovery was best predicted
by the time spent in specific connectivityconfigurations
(0.8960.01) in combination with the initial impairment.
Here, better recovery was linked to a shortertime spent in a
functionally integrated configuration. Dynamic
connectivity-derived parameters constitute potent predictors
of acuteimpairment and recovery, which, in the future, might
inform personalized therapy regimens to promote stroke
recovery.},
cin = {INM-3},
ddc = {610},
cid = {I:(DE-Juel1)INM-3-20090406},
pnm = {5252 - Brain Dysfunction and Plasticity (POF4-525)},
pid = {G:(DE-HGF)POF4-5252},
typ = {PUB:(DE-HGF)16},
pubmed = {34778761},
UT = {WOS:000804791900052},
doi = {10.1093/braincomms/fcab227},
url = {https://juser.fz-juelich.de/record/905340},
}