Browsing by Author "Barkhof, Frederik"

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  • DHA intake relates to better cerebrovascular and neurodegeneration neuroimaging phenotypes in middle-aged adults at increased genetic risk of Alzheimer disease
    Sala Vila, Aleix; Arenaza Urquijo, Eider M.; Sánchez Benavides, Gonzalo; Suárez-Calvet, Marc; Milà Alomà, Marta; Grau-Rivera, Oriol; González de Echávarri, José Maria; Crous-Bou, Marta; Minguillón, Carolina; Fauria, Karine; Operto, Grégory; Falcón, Carles; Salvadó, Gemma; Cacciaglia, Raffaele; Ingala, Silvia; Barkhof, Frederik; Schröder, Helmut, 1958-; Scarmeas, Nikolaos; Gispert López, Juan Domingo; Molinuevo, José Luis; ALFA Study (American Society for Nutrition, 2021)
    Background: The number of APOE-ε4 alleles is a major nonmodifiable risk factor for sporadic Alzheimer disease (AD). There is increasing evidence on the benefits of dietary DHA (22:6n-3) before the onset of AD symptoms, ...
  • Impact of cerebral blood flow and amyloid load on SUVR bias
    Heeman, Fiona; Yaqub, Maqsood; Hendriks, Janine; van Berckel, Bart N. M.; Collij, Lyduine E.; Gray, Katherine R.; Manber, Richard; Wolz, Robin; Garibotto, Valentina; Wimberley, Catriona; Ritchie, Craig; Barkhof, Frederik; Gispert López, Juan Domingo; Vállez García, David; Lopes Alves, Isadora; Lammertsma, Adriaan A.; AMYPAD Consortium (SpringerOpen, 2022)
    Background: despite its widespread use, the semi-quantitative standardized uptake value ratio (SUVR) may be biased compared with the distribution volume ratio (DVR). This bias may be partially explained by changes in ...
  • Parametric imaging of dual-time window [18 F]flutemetamol and [18 F]florbetaben studies
    Heeman, Fiona; Yaqub, Maqsood; Hendriks, Janine; Bader, Ilona; Barkhof, Frederik; Gispert López, Juan Domingo; van Berckel, Bart N. M.; Lopes Alves, Isadora; Lammertsma, Adriaan A. (Elsevier, 2021)
    Optimal pharmacokinetic models for quantifying amyloid beta (Aβ) burden using both [18F]flutemetamol and [18F]florbetaben scans have previously been identified at a region of interest (ROI) level. The purpose of this study ...
  • Patterns of white matter hyperintensities associated with cognition in middle-aged cognitively healthy individuals
    Brugulat Serrat, Anna, 1986-; Salvadó, Gemma; Sudre, Carole H.; Grau-Rivera, Oriol; Suárez-Calvet, Marc; Falcón, Carles; Sánchez Benavides, Gonzalo; Gramunt Fombuena, Nina; Fauria, Karine; Cardoso, M. Jorge; Barkhof, Frederik; Molinuevo, José Luis; Gispert López, Juan Domingo; ALFA Study (Springer, 2019)
    White matter hyperintensities (WMH) are commonly detected in the brain of elderly individuals and have been associated with a negative impact on multiple cognitive domains. We aim to investigate the impact of global and ...
  • Quantification of [18 F]florbetaben amyloid-PET imaging in a mixed memory clinic population. The ABIDE project
    Collij, Lyduine E.; Salvadó, Gemma; de Wilde, Arno; Altomare, Daniele; Shekari, Mahnaz; Domingo Gispert, Juan; Bullich, Santiago; Stephens, Andrew W.; Barkhof, Frederik; Scheltens, Philip; Bouwman, Femke; van der Flier, Wiesje M. (Wiley, 2022)
    Introduction: we investigated amyloid-burden quantification in a mixed memory clinic population. Methods: [18 F]Florbetaben amyloid-PET (positron emission tomography) scans of 348 patients were visually read and quantified ...
  • Quantification of amyloid PET for future clinical use: a state-of-the-art review
    Pemberton, Hugh G.; Collij, Lyduine E.; Heeman, Fiona; Bollack, Ariane; Shekari, Mahnaz; Salvadó, Gemma; Lopes Alves, Isadora; Vallez Garcia, David; Battle, Mark; Buckley, Christopher, 1948-; Stephens, Andrew W.; Bullich, Santiago; Garibotto, Valentina; Barkhof, Frederik; Gispert López, Juan Domingo; Farrar, Gill; AMYPAD Consortium (Springer, 2022)
    Amyloid-β (Aβ) pathology is one of the earliest detectable brain changes in Alzheimer's disease (AD) pathogenesis. The overall load and spatial distribution of brain Aβ can be determined in vivo using positron emission ...
  • Regional amyloid accumulation predicts memory decline in initially cognitively unimpaired individuals
    Collij, Lyduine E.; Mastenbroek, Sophie E.; Salvadó, Gemma; Wink, Alle Meije; Visser, Pieter Jelle; Barkhof, Frederik; van Berckel, Bart N. M.; Lopes Alves, Isadora (Elsevier, 2021)
    Introduction: The value of quantitative longitudinal and regional amyloid beta (Aβ) measurements in predicting cognitive decline in initially cognitively unimpaired (CU) individuals remains to be determined. Methods: We ...
  • Spatial patterns of white matter hyperintensities associated with Alzheimer’s disease risk factors in a cognitively healthy middle-aged cohort
    Salvadó, Gemma; Brugulat Serrat, Anna, 1986-; Sudre, Carole H.; Grau-Rivera, Oriol; Suárez-Calvet, Marc; Falcón, Carles; Fauria, Karine; Cardoso, M. Jorge; Barkhof, Frederik; Molinuevo, José Luis; Gispert López, Juan Domingo; ALFA Study (BioMed Central, 2019)
    Background: White matter hyperintensities (WMH) of presumed vascular origin have been associated with an increased risk of Alzheimer's disease (AD). This study aims to describe the patterns of WMH associated with dementia ...
  • Spatial-temporal patterns of β-amyloid accumulation: a subtype and stage inference model analysis
    Collij, Lyduine E.; Salvadó, Gemma; Wottschel, Viktor; Mastenbroek, Sophie E.; Schoenmakers, Pierre; Heeman, Fiona; Aksman, Leon; Wink, Alle Meije; Berckel, Bart N.M.; van de Flier, Wiesje M.; Scheltens, Philip; Visser, Pieter Jelle; Barkhof, Frederik; Haller, Sven; Gispert López, Juan Domingo; Lopes Alves, Isadora; Alzheimer’s Disease Neuroimaging Initiative; ALFA Study (Lippincott Williams & Wilkins, 2022)
    Background and objectives: β-amyloid (Aβ) staging models assume a single spatial-temporal progression of amyloid accumulation. We assessed evidence for Aβ accumulation subtypes by applying the data-driven Subtype and Stage ...
  • Strategies to reduce sample sizes in Alzheimer's disease primary and secondary prevention trials using longitudinal amyloid PET imaging
    Lopes Alves, Isadora; Heeman, Fiona; Collij, Lyduine E.; Salvadó, Gemma; Tolboom, Nelleke; Vilor Tejedor, Natàlia, 1988-; Markiewicz, Pawel; Yaqub, Maqsood; Cash, David; Mormino, Elizabeth C.; Insel, Philip S.; Boellaard, Ronald; van Berckel, Bart N. M.; Lammertsma, Adriaan A.; Barkhof, Frederik; Gispert López, Juan Domingo (BioMed Central, 2021)
    Background: Detecting subtle-to-moderate biomarker changes such as those in amyloid PET imaging becomes increasingly relevant in the context of primary and secondary prevention of Alzheimer's disease (AD). This work aimed ...
  • Uncertainty analysis of MR-PET image registration for precision neuro-PET imaging
    Markiewicz, Pawel J.; Gispert López, Juan Domingo; Barkhof, Frederik (Elsevier, 2021)
    Accurate regional brain quantitative PET measurements, particularly when using partial volume correction, rely on robust image registration between PET and MR images. We argue here that the precision, and hence the ...
  • Visual assessment of [18F]flutemetamol PET images can detect early amyloid pathology and grade its extent
    Collij, Lyduine E.; Salvadó, Gemma; Shekari, Mahnaz; Lopes Alves, Isadora; Reimand, Juhan; Wink, Alle-Meije; Zwan, Marissa; Niñerola-Baizán, Aida; Perissinotti, Andrés; Scheltens, Philip; Ikonomovic, Milos D.; Smith, Adrian P.L.; Farrar, Gill; Molinuevo, José Luis; Barkhof, Frederik; Buckley, Christopher, 1948-; van Berckel, Bart N. M. (Springer, 2021)
    Purpose: To investigate the sensitivity of visual read (VR) to detect early amyloid pathology and the overall utility of regional VR. Methods: [18F]Flutemetamol PET images of 497 subjects (ALFA+ N = 352; ADC N = 145) were ...
  • White matter hyperintensities mediate gray matter volume and processing speed relationship in cognitively unimpaired participants
    Brugulat Serrat, Anna, 1986-; Salvadó, Glòria; Operto, Grégory; Cacciaglia, Raffaele; Sudre, Carole H.; Grau-Rivera, Oriol; Suárez-Calvet, Marc; Falcón, Carles; Sánchez Benavides, Gonzalo; Gramunt Fombuena, Nina; Minguillón, Carolina; Fauria, Karine; Barkhof, Frederik; Molinuevo, José Luis; Gispert López, Juan Domingo; ALFA Study (Wiley, 2020)
    White matter hyperintensities (WMH) have been extensively associated with cognitive impairment and reductions in gray matter volume (GMv) independently. This study explored whether WMH lesion volume mediates the relationship ...