This database contains 39 studies, archived under the term: "Neuroimaging (e.g. MRI, PET, CAT etc.)"
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Effects of liraglutide on neurodegeneration, blood flow and cognition in Alzheimer´s disease – protocol for a controlled, randomized double-blinded trial
Egefjord, Lærke,
Gejl, Michael,
Møller, Arne,
Brændgaard, Hans,
Gottrup, Hanne,
Antropova, Olga,
Møller, Niels,
Poulsen, Henrik E.,
Gjedde, Albert,
Brock, Birgitte,
Rungby, Jørgen
Introduction: Type 2 diabetes (DM-2) increases the risk of developing Alzheimer´s disease (AD), and patients with AD are more likely to develop DM-2. DM-2 and AD share some pathophysiological features. In AD, amyloid-β (Aβ) is accumulated as extracellular plaques in the gray matter of the brain, while in DM-2 islet amyloid polypeptide (IAPP) is accumulated […]
Differences in regional brain metabolism associated with specific formulations of hormone therapy in postmenopausal women at risk for AD
Silverman, Daniel H. S.,
Geist, Cheri L.,
Kenna, Heather A.,
Williams, Katherine,
Wroolie, Tonita,
Powers, Bevin,
Brooks, John,
Rasgon, Natalie L.
Differential cerebral metabolic effects of various hormone therapy formulations, and their associations with cognitive status, remain to be established. The principal aim of the current study was to assess relationships between regional cerebral metabolism and estrogen-based hormone therapies. Postmenopausal women (n=53) at elevated risk for Alzheimer’s disease (AD) were on estrogen-containing hormone therapy for at […]
Voxel-level comparison of arterial spin-labeled perfusion MRI and FDG-PET in Alzheimer disease
Chen, Y.,
Wolk, D. A.,
Reddin, J. S.,
Korczykowski, M.,
Martinez, P. M.,
Musiek, E. S.,
Newberg, A. B.,
Julin, P.,
Arnold, S. E.,
Greenberg, J. H.,
Detre, J. A.
Objective: We compared the ability of arterial spin labeling (ASL), an MRI method that measures cerebral blood flow (CBF), to that of FDG-PET in distinguishing patients with Alzheimer disease (AD) from healthy, age-matched controls.; Methods: Fifteen patients with AD (mean age 72 ± 6 years, Mini-Mental State Examination score [MMSE] 20 ± 6) and 19 […]
Improved visual hallucination by donepezil and occipital glucose metabolism in dementia with Lewy bodies: the Osaki-Tajiri project
Satoh, Masayuki,
Ishikawa, Hiroyasu,
Meguro, Kenichi,
Kasuya, Masashi,
Ishii, Hiroshi,
Yamaguchi, Satoshi
Deficits in the cholinergic system are pronounced in dementia with Lewy bodies (DLB) and are more severe in patients with visual hallucinations (VHs). The aim is to identify the occipital glucose metabolism patterns by positron emission tomography (PET) and the changes following donepezil treatment. 13 DLB patients with VHs were enrolled in the study. After […]
Longitudinal changes in white matter disease and cognition in the first year of the Alzheimer disease neuroimaging initiative
Carmichael, Owen,
Schwarz, Christopher,
Drucker, David,
Fletcher, Evan,
Harvey, Danielle,
Beckett, Laurel,
Jack, Clifford R., Jr.,
Weiner, Michael,
DeCarli, Charles
Objective: To evaluate relationships between magnetic resonance imaging (MRI)-based measures of white matter hyperintensities (WMHs), measured at baseline and longitudinally, and 1-year cognitive decline using a large convenience sample in a clinical trial design with a relatively mild profile of cardiovascular risk factors.; Design: Convenience sample in a clinical trial design.; Subjects: A total of […]
3D comparison of low, intermediate, and advanced hippocampal atrophy in MCI
Apostolova, Liana G.,
Thompson, Paul M.,
Green, Amity E.,
Hwang, Kristy S.,
Zoumalan, Charleen,
Jack, Clifford R., Jr.,
Harvey, Danielle J.,
Petersen, Ronald C.,
Thal, Leon J.,
Aisen, Paul S,
Toga, Arthur W.,
Cummings, Jeffrey L.,
Decarli, Charles S.
We applied the hippocampal radial atrophy mapping technique to the baseline and follow-up magnetic resonance image data of 169 amnestic mild cognitive impairment (MCI) participants in the imaging arm of the Alzheimer’s Disease Cooperative Study MCI Donepezil/Vitamin E trial. Sixty percent of the subjects with none to mild hippocampal atrophy rated with the visual medial […]
Voxel-based morphometry in individual patients: a pilot study in early Huntington disease
Mühlau, M.,
Wohlschläger, A. M.,
Gaser, C.,
Valet, M.,
Weindl, A.,
Nunnemann, S.,
Peinemann, A.,
Etgen, T.,
Ilg, R.
Background and Purpose: Voxel-based morphometry (VBM) has proved a powerful method to detect subtle changes of gray matter (GM) at the group level but the role of VBM for the detection of GM changes in single subjects, especially in those with suspected neurodegenerative disorder, remains uncertain. Here, we performed single subject analyses in 22 patients […]
Differential effects of global and cerebellar normalization on detection and differentiation of dementia in FDG-PET studies
Dukart, Juergen,
Mueller, Karsten,
Horstmann, Annette,
Vogt, Barbara,
Frisch, Stefan,
Barthel, Henryk,
Becker, Georg,
Möller, Harald E.,
Villringer, Arno,
Sabri, Osama,
Schroeter, Matthias L.
FDG-PET ([18F]fluorodeoxyglucose positron emission tomography) is frequently used to improve the differential diagnosis of dementia. However, a fundamental methodological issue of the reference area for the intensity normalization procedure is still unsolved. Here, we systematically compared the two most commonly used normalization methods to the cerebral and to the cerebellar metabolic rate for glucose with […]