This database contains 67 studies, archived under the term: "magnetic resonance imaging"
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Donepezil treatment stabilizes functional connectivity during resting state and brain activity during memory encoding in Alzheimer’s disease
Solé-Padullés, Cristina,
Bartrés-Faz, David,
Lladó, Albert,
Bosch, Beatriz,
Peña-Gómez, Cleofé,
Castellví, Magdalena,
Rami, Lorena,
Bargalló, Nuria,
Sánchez-Valle, Raquel,
Molinuevo, José Luis
Previous studies with functional magnetic resonance imaging (fMRI) demonstrated a differential brain activity and connectivity after treatment with donepezil in Alzheimer’s disease (AD) when compared to healthy elders. Importantly however, there are no available studies where the placebo or control group included comparable AD patients relative to the treated groups. Fifteen patients recently diagnosed of […]
Alzheimer’s disease (AD) and executive dysfunction. A case-control study on the significance of frontal white matter changes detected by diffusion tensor imaging (DTI)
Sjöbeck, Martin,
Elfgren, Christina,
Larsson, Elna-Marie,
Brockstedt, Sara,
Lätt, Jimmy,
Englund, Elisabet,
Passant, Ulla
White matter (WM) changes are frequently seen on structural imaging in AD but the clinical relevance of these changes is uncertain. Frontal WM pathology is often observed upon neuropathological examination in AD. Since frontal cortical/sub-cortical pathology is known to relate to executive dysfunction, the aim was to elucidate if frontal WM changes in AD correlated […]
Effects of cilostazol on cognition and regional cerebral blood flow in patients with Alzheimer’s disease and cerebrovascular disease: a pilot study
Sakurai, Hirofumi,
Hanyu, Haruo,
Sato, Tomohiko,
Kume, Kazumasa,
Hirao, Kentaro,
Kanetaka, Hidekazu,
Iwamoto, Toshihiko
Aim: It remains unknown whether antiplatelet agents have a preventive effect on cognitive decline in patients with Alzheimer’s disease (AD). We investigated the effects of cilostazol, an antiplatelet agent and cyclic adenosine monophosphate phosphodiesterase 3 inhibitor, on cognition and regional cerebral blood flow (rCBF) in elderly patients with AD and cerebrovascular disease (CVD).; Methods: A […]
Accelerated cognitive decline in patients with type 2 diabetes: MRI correlates and risk factors
Reijmer, Yael D.,
van den Berg, Esther,
de Bresser, Jeroen,
Kessels, Roy P. C.,
Kappelle, L. Jaap,
Algra, Ale,
Biessels, Geert Jan
Background: Type 2 diabetes mellitus is associated with an increased risk of cognitive decline and dementia. We examined brain imaging correlates and vascular and metabolic risk factors of accelerated cognitive decline in patients with type 2 diabetes.; Methods: Cognitive functioning and brain volume as well as metabolic and vascular risk factors were assessed twice in […]
Platelet decline as a predictor of brain injury in HIV infection
Ragin, Ann B.,
D’Souza, Gypsyamber,
Reynolds, Sandra,
Miller, Eric,
Sacktor, Ned,
Selnes, Ola A.,
Martin, Eileen,
Visscher, Barbara R.,
Becker, James T.
An association between platelet decline and increased risk of progression to dementia has been observed in an advanced HIV infection cohort study. This investigation evaluated the prognostic significance of platelet decline for dementia, for psychomotor slowing, and for brain injury, as quantified in vivo, in a much larger population of HIV+ men. Platelet counts and […]
Repetitive transcranial magnetic stimulation combined with cognitive training is a safe and effective modality for the treatment of Alzheimer’s disease: a randomized, double-blind study
Rabey, Jose M.,
Dobronevsky, Evgenia,
Aichenbaum, Sergio,
Gonen, Ofer,
Marton, Revital Gendelman,
Khaigrekht, Michael
Cortical excitability can be modulated using repetitive transcranial magnetic stimulation (rTMS). Previously, we showed that rTMS combined with cognitive training (rTMS-COG) has positive results in Alzheimer’s disease (AD). The goal of this randomized double-blind, controlled study was to examine the safety and efficacy of rTMS-COG in AD. Fifteen AD patients received 1-h daily rTMS-COG or […]
Evaluation of Parkinson disease and Alzheimer disease with the use of neuromelanin MR imaging and (123)I-metaiodobenzylguanidine scintigraphy
Miyoshi, F.,
Ogawa, T.,
Kitao, S.- i.,
Kitayama, M.,
Shinohara, Y.,
Takasugi, M.,
Fujii, S.,
Kaminou, T.
Background and Purpose: Progressive changes in the substantia nigra pars compacta and locus ceruleus of patients with Parkinson disease and Alzheimer disease visualized by neuromelanin MRI and cardiac postganglionic sympathetic nerve function on (123)I-metaiodobenzylguanidine scintigraphy have not been fully evaluated. We compared the diagnostic value of these modalities among patients with early Parkinson disease, late […]
Effect of cholinergic stimulation in early Alzheimer’s disease – functional imaging during a recognition memory task
Miettinen, Pekka S.,
Pihlajamäki, Maija,
Jauhiainen, Anne M.,
Tarkka, Ina M.,
Gröhn, Heidi,
Niskanen, Eini,
Hänninen, Tuomo,
Vanninen, Ritva,
Soininen, Hilkka
Treatment of Alzheimer’s disease (AD) with acetylcholinesterase inhibitors (AChEI) enhances cholinergic activity and alleviates clinical symptoms. In the present functional magnetic resonance imaging (fMRI) study, we investigated the effect of the AChEI rivastigmine on cognitive function and brain activation patterns during a face recognition memory task. Twenty patients with newly-diagnosed mild AD were administered a […]