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- W2022803490 abstract "The neurobiological basis for attention deficit hyperactivity disorder (ADHD) has not yet been fully established, although there is a growing body of evidence pointing to functional and structural abnormalities involving the basal ganglia, cerebellum, and regions of frontal grey matter. The purpose of this study was to investigate regional cerebral perfusion in adults with ADHD and age-matched control subjects, and to assess the perfusion response to stimulant treatment in the ADHD group using a non-invasive magnetic resonance perfusion imaging technique. Whole-brain cerebral perfusion images were acquired from nine right-handed male patients with ADHD and eleven age-matched control subjects using a continuous arterial spin labelling (CASL) technique. The ADHD group was assessed once on their normal treatment and once after withdrawing from treatment for at least one week. An automated voxel-based analysis was used to identify regions where the cerebral perfusion differed significantly between the ADHD and control groups, and where the perfusion altered significantly with stimulant treatment. Regional cerebral perfusion was increased in the ADHD group in the left caudate nucleus, frontal and parietal regions. Psychomotor stimulant treatment acted to normalise perfusion in frontal cortex and the caudate nucleus with additional decreases in parietal and parahippocampal regions. These findings highlight the potential sensitivity of non-invasive perfusion MRI techniques like CASL in the evaluation of perfusion differences due to illness and medication treatment, and provide further evidence that persistence of ADHD symptomatology into adulthood is accompanied by abnormalities in frontal and striatal brain regions." @default.
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- W2022803490 date "2008-08-01" @default.
- W2022803490 modified "2023-10-11" @default.
- W2022803490 title "Increased cerebral perfusion in adult attention deficit hyperactivity disorder is normalised by stimulant treatment: A non-invasive MRI pilot study" @default.
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- W2022803490 doi "https://doi.org/10.1016/j.neuroimage.2008.04.169" @default.
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