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- W3040921424 abstract "Abstract Background Cerebellar tumor survivors often exhibit neuropsychological deficits that could be related to alterations in cerebro‐cerebellar networks. This is a pilot study designed to understand if diffusion tensor imaging (DTI)‐based tractography is able to identify possible correlations between cerebellar white matter structure and cognitive outcome in children on long‐term follow‐up for posterior fossa (PF) tumors who were thoroughly assessed for neuropsychological functioning. Methods DTI‐based tractography was performed in pediatric patients with PF tumors. Fractional anisotropy (FA) and volumetric measurements of spinocerebellar, dentorubrothalamocortical and corticopontocerebellar tracts were analyzed. Cognitive and neuropsychological functioning was assessed by the Wechsler Intelligence Scale for Children–IV Edition (WISC‐IV) and the Developmental Neuropsychological Assessment (NEPSY II). The associations between Full‐Scale Intelligence Quotient (FSIQ), NEPSY‐II scores, and fiber tracts were tested by the Spearman rank correlation coefficient. Results Seven patients (median age at diagnosis five years, range, 3‐13) treated for medulloblastoma (2/7; 29%) and pilocytic astrocytoma (5/7; 71%) were retrospectively evaluated. All children had complete surgery. The median FSIQ was 84 (range, 67‐93). Patients presented with several deficits on many NEPSY‐II tasks; in particular, memory was impaired in nearly half of them. FSIQ and neurocognitive tasks significantly correlated with specific corticopontocerebellar tracts. Conclusion Children on follow‐up for PF tumor showed scattered cognitive impairments, including deficits in long‐term and immediate memory. Tractography allowed us to describe a possible association between the integrity of cerebellar pathways and neurocognitive performance, suggesting that the myelinization of these fibers may represent an indicator for the development of long‐term cognitive sequelae." @default.
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- W3040921424 date "2020-07-11" @default.
- W3040921424 modified "2023-10-01" @default.
- W3040921424 title "Possible association between the integrity of cerebellar pathways and neurocognitive performance in children with posterior fossa tumors" @default.
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- W3040921424 doi "https://doi.org/10.1002/pbc.28538" @default.
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