Browsing Institutt for sirkulasjon og bildediagnostikk by Journals "NeuroImage"
Now showing items 1-9 of 9
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AI-driven attenuation correction for brain PET/MRI: Clinical evaluation of a dementia cohort and importance of the training group size
(Peer reviewed; Journal article, 2020)Introduction Robust and reliable attenuation correction (AC) is a prerequisite for accurate quantification of activity concentration. In combined PET/MRI, AC is challenged by the lack of bone signal in the MRI from which ... -
Atypical brain structure mediates reduced IQ in young adults born preterm with very low birth weight
(Peer reviewed; Journal article, 2022)Preterm birth with very low birth weight (VLBW) confers heightened risk for perinatal brain injury and long-term cognitive deficits, including a reduction in IQ of up to one standard deviation. Persisting gray and white ... -
Limited microstructural and connectivity deficits despite subcortical volume reductions in school-aged children born preterm with very low birth weight.
(Journal article; Peer reviewed, 2015)Preterm birth and very low birth weight (VLBW, ≤ 1500 g) are worldwide problems that burden survivors with lifelong cognitive, psychological, and physical challenges. In this multimodal structural magnetic resonance imaging ... -
Longitudinal study of the effect of a 5-year exercise intervention on structural brain complexity in older adults. A Generation 100 substudy
(Peer reviewed; Journal article, 2022)Physical inactivity has been identified as an important risk factor for dementia. High levels of cardiorespiratory fitness (CRF) have been shown to reduce the risk of dementia. However, the mechanism by which exercise ... -
Neural networks for parameter estimation in microstructural MRI: application to a diffusion-relaxation model of white matter
(Peer reviewed; Journal article, 2021)Specific features of white matter microstructure can be investigated by using biophysical models to interpret relaxation-diffusion MRI brain data. Although more intricate models have the potential to reveal more details ... -
Preterm birth leads to hyper-reactive cognitive control processing and poor white matter organization in adulthood
(Peer reviewed; Journal article, 2017)Individuals born preterm with very low birth weight (VLBW; birth weight ≤ 1500 g) are at high risk for perinatal brain injuries and deviant brain development, leading to increased chances of later cognitive, emotional, and ... -
Reduced white matter fractional anisotropy mediates cortical thickening in adults born preterm with very low birthweight.
(Journal article; Peer reviewed, 2018)Development of the cerebral cortex may be affected by aberrant white matter development. Preterm birth with very low birth weight (VLBW) has been associated with reduced fractional anisotropy of white matter and changes ... -
The effect of white matter hyperintensities on regional brain volumes and white matter microstructure, a population-based study in HUNT
(Journal article; Peer reviewed, 2019)Even though age-related white matter hyperintensities (WMH) begin to emerge in middle age, their effect on brain micro- and macrostructure in this age group is not fully elucidated. We have examined how presence of WMH and ... -
Visual-motor deficits relate to altered gray and white matter in young adults born preterm with very low birth weight
(Journal article; Peer reviewed, 2015)Individuals born preterm and at very low birth weight (birth weight ≤ 1500 g) are at an increased risk of perinatal brain injury and neurodevelopmental deficits over the long term. This study examined whether this clinical ...