Blar i Publikasjoner fra Cristin - St. Olavs hospital på forfatter "Hansen, Tor Ivar"
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Does risk of brain cancer increase with intracranial volume? A population-based case control study
Fyllingen, Even Hovig; Hansen, Tor Ivar; Jakola, Asgeir Store; Håberg, Asta; Salvesen, Øyvind; Solheim, Ole (Journal article; Peer reviewed, 2018)Background Glioma is the most common primary brain tumor and is believed to arise from glial stem cells. Despite large efforts, there are limited established risk factors. It has been suggested that tissue with more ... -
How Does the Accuracy of Intracranial Volume Measurements Affect Normalized Brain Volumes? Sample Size Estimates Based on 966 Subjects from the HUNT MRI Cohort
Hansen, Tor Ivar; Brezova, Veronika; Eikenes, Live; Håberg, Asta; Vangberg, Torgil Riise (Peer reviewed; Journal article, 2015)BACKGROUND AND PURPOSE: The intracranial volume is commonly used for correcting regional brain volume measurements for variations in head size. Accurate intracranial volume measurements are important because errors will ... -
Mobile Assessments of Mood, Cognition, Smartphone-Based Sensor Activity, and Variability in Craving and Substance Use in Patients With Substance Use Disorders in Norway: Prospective Observational Feasibility Study
Lauvsnes, Anders Dahlen Forsmo; Hansen, Tor Ivar; Ankill, Sebastian Øiungen; Bae, Sang Won; Gråwe, Rolf W.; Braund, Taylor A.; Larsen, Mark; Langaas, Mette (Peer reviewed; Journal article, 2023)Background: Patients with substance use disorders (SUDs) are at increased risk for symptom deterioration following treatment, with up to 60% resuming substance use within the first year posttreatment. Substance use craving ... -
Visual function correlates with neurodevelopment in a population cohort of school-aged children born extremely preterm
Ingvaldsen, Sigrid Hegna; Hansen, Tor Ivar; Håberg, Asta; Moholdt, Viggo Andreas; Evensen, Kari Anne Indredavik; Dammann, Olaf; Austeng, Dordi Kristine; Morken, Tora Sund (Peer reviewed; Journal article, 2023)Aim To investigate visual function and neurodevelopment in a geographically defined population cohort of school-aged children born extremely preterm. Methods All children born extremely preterm in Central Norway between ...