Cerebral blood flow characteristics following hemodialysis initiation in older adults: A prospective longitudinal pilot study using arterial spin labeling imaging

Autor: Xiufeng Li, Yelena X. Slinin, Lin Zhang, Donald R. Dengel, David Tupper, Gregory J. Metzger, Anne M. Murray
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: NeuroImage: Clinical, Vol 28, Iss , Pp 102434- (2020)
Druh dokumentu: article
ISSN: 2213-1582
DOI: 10.1016/j.nicl.2020.102434
Popis: Purpose: To investigate cerebral blood flow (CBF) characteristics before and after hemodialysis initiation and their longitudinal associations with global cognitive function in older adults. Methods: A cohort of 17 older end-stage renal disease patients anticipating standard thrice-weekly hemodialysis and a group of 11 age- and sex-matched healthy control volunteers were recruited for brain perfusion imaging studies using arterial spin labeling. Hemodialysis patients participated in a prospective longitudinal study using brain magnetic resonance imaging and global cognitive assessment using the Modified Mini-Mental State Examination (3MS) at two time points: baseline, 2.9 ± 0.9 months before, and follow-up, 6.4 ± 2.4 months after hemodialysis initiation. Healthy controls were imaged once using the same protocol. CBF analyses were performed globally in grey and white matter and regionally in the hippocampus and orbitofrontal cortex. Covariate-adjusted linear mixed-effects models were used for statistical analyses (significance: p
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