• Anatomical variations in the circle of Willis are associated with increased odds of intracranial aneurysms: The Tromsø study 

      Hindenes, Lars Bakke; Ingebrigtsen, Tor; Isaksen, Jørgen Gjernes; Håberg, Asta; Johnsen, Liv-Hege; Herder, Marit; Mathiesen, Ellisiv B.; Vangberg, Torgil Riise (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-25)
      Purpose: Studies on patients suggest an association between anatomical variations in the Circle of Willis (CoW) and intracranial aneurysms (IA), but it is unclear whether this association is present in the general population. In this cross-sectional population study, we investigated the associations between CoW anatomical variations and IA.<p> <p>Methods: We included 1667 participants from a ...
    • Both brain size and biological sex contribute to variation in white matter microstructure in middle-aged healthy adults 

      Eikenes, Live; Visser, Eelke; Vangberg, Torgil Riise; Håberg, Asta (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-03)
      Whether head size and/or biological sex influence proxies of white matter (WM) microstructure such as fractional anisotropy (FA) and mean diffusivity (MD) remains controversial. Diffusion tensor imaging (DTI) indices are also associated with age, but there are large discrepancies in the spatial distribution and timeline of age-related differences reported. The aim of this study was to evaluate the ...
    • Brain death and postmortem organ donation: report of a questionnaire from the CENTER-TBI study 

      van Veen, Ernest; Van Der Jagt, Mathieu; Cnossen, Maryse C.; Maas, Andrew I. R.; De Beaufort, Inez D.; Menon, David K.; Citerio, Giuseppe; Stocchetti, Nino; Rietdijk, Wim J. R.; van Dijck, Jeroen T. J. M.; Kompanje, Erwin J. O.; Vik, Anne; Andelic, Nada; Andreassen, Lasse; Anke, Audny; Frisvold, Shirin; Helseth, Eirik; Roise, Olav; Skandsen, Toril; Håberg, Asta; Røe, Cecilie (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-16)
      <p><i>Background</i>: We aimed to investigate the extent of the agreement on practices around brain death and postmortem organ donation.</p> <p><i>Methods</i>: Investigators from 67 Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) study centers completed several questionnaires (response rate: 99%).</p> <p><i>Results</i>: Regarding practices around ...
    • Echoes from Intrinsic Connectivity Networks in the Subcortex 

      Groot, Josephine Maria; Miletic, Steven; Isherwood, Scott J.S.; Tse, Desmond H.Y.; Habli, Sarah; Håberg, Asta; Forstmann, Birte U.; Bazin, Pierre-Louis; Mittner, Matthias Bodo (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-27)
      Decades of research have greatly improved our understanding of intrinsic human brain organization in terms of functional networks and the transmodal hubs within the cortex at which they converge. However, substrates of multinetwork integration in the human subcortex are relatively uncharted. Here, we leveraged recent advances in subcortical atlasing and ultra-high field (7 T) imaging optimized for ...
    • Five years of exercise intervention at different intensities and development of white matter hyperintensities in community dwelling older adults, a Generation 100 sub-study 

      Arild, Anette; Vangberg, Torgil Riise; Nikkels, Hanne; Lydersen, Stian; Wisløff, Ulrik; Stensvold, Dorthe; Håberg, Asta (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-18)
      We investigated if a five-year supervised exercise intervention with moderate-intensity continuous training (MICT) or high-intensity interval training (HIIT) versus control; physical activity according to national guidelines, attenuated the growth of white matter hyperintensities (WMH). We hypothesized that supervised exercise, in particular HIIT, reduced WMH growth. Older adults from the general ...
    • Post-Concussion Symptoms in Complicated vs. Uncomplicated Mild Traumatic Brain Injury Patients at Three and Six Months Post-Injury: Results from the CENTER-TBI Study 

      Voomolen, DC; Haagsma, JA; Polinder, Suzanne; Maas, AIR; Steyerberg, Ewout W; Vulekovic, Peter; Sewalt, CA; Gravesteijn, BY; Covic, Amra; Andelic, Nada; Plass, AM; von Steinbüchel, Nicole; Vik, Anne; Andreassen, Lasse; Anke, Audny; Frisvold, Shirin Kordasti; Helseth, Eirik; Skandsen, Toril; Røise, Olav; Håberg, Asta; Røe, Cecilie (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-08)
      Abstract The aim of this study was to assess the occurrence of post-concussion symptoms and post-concussion syndrome (PCS) in a large cohort of patients after complicated and uncomplicated mild traumatic brain injury (mTBI) at three and six months post-injury. Patients were included through the prospective cohort study: Collaborative European NeuroTrauma Effectiveness Research (CENTER-TBI). Patients ...
    • Systemic inflammation persists the first year after mild traumatic brain injury: Results from the Prospective Trondheim Mild Traumatic Brain Injury Study 

      Chaban, Viktoriia; Clarke, Gerard; Skandsen, Toril; Islam, Rakibul; Einarsen, Cathrine Elisabeth; Vik, Anne; Damås, Jan Kristian; Mollnes, Tom Eirik; Håberg, Asta; Pischke, Soeren (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-03)
      Innate immune activation has been attributed a key role in traumatic brain injury (TBI) and successive morbidity. In mild TBI (mTBI), however, the extent and persistence of innate immune activation are unknown. We determined plasma cytokine level changes over 12 months after an mTBI in hospitalized and non-hospitalized patients compared with community controls; and examined their associations to ...
    • Variation in general supportive and preventive intensive care management of traumatic brain injury: a survey in 66 neurotrauma centers participating in the Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) study 

      Huijben, Jilske A.; Volovici, Victor; Cnossen, Maryse C.; Haitsma, Iain K.; Stocchetti, Nino; Maas, Andrew I. R.; Menon, David K.; Ercole, Ari; Citerio, Giuseppe; Nelson, David; Polinder, Suzanne; Steyerberg, Ewout W.; Lingsma, Hester F.; van der Jagt, Mathieu; Vik, Anne; Andelic, Nada; Andreassen, Lasse; Anke, Audny; Frisvold, Shirin; Helseth, Eirik; Roise, Olav; Skandsen, Toril; Håberg, Asta; Røe, Cecilie (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-13)
      <p><i>Background</i>: General supportive and preventive measures in the intensive care management of traumatic brain injury (TBI) aim to prevent or limit secondary brain injury and optimize recovery. The aim of this survey was to assess and quantify variation in perceptions on intensive care unit (ICU) management of patients with TBI in European neurotrauma centers.</p> <p><i>Methods</i>: We ...
    • Variations in the Circle of Willis in a large population sample using 3D TOF angiography: The Tromsø Study 

      Hindenes, Lars Bakke; Håberg, Asta; Johnsen, Liv-Hege; Mathiesen, Ellisiv B.; David, Robben; Vangberg, Torgil Riise (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-03)
      The main arteries that supply blood to the brain originate from the Circle of Willis (CoW). The CoW exhibits considerable anatomical variations which may have clinical importance, but the variability is insufficiently characterised in the general population. We assessed the anatomical variability of CoW variants in a community-dwelling sample (N = 1,864, 874 men, mean age = 65.4, range 40–87 years), ...