This database contains 10 studies, archived under the term: "radiopharmaceuticals"
Mechanism of amyloid removal in patients with Alzheimer disease treated with gantenerumab
Ostrowitzki, Susanne,
Deptula, Dennis,
Thurfjell, Lennart,
Barkhof, Frederik,
Bohrmann, Bernd,
Brooks, David J.,
Klunk, William E.,
Ashford, Elizabeth,
Yoo, Kisook,
Xu, Zhi-Xin,
Loetscher, Hansruedi,
Santarelli, Luca
Background: Gantenerumab is a fully human anti-Aβ monoclonal antibody in clinical development for the treatment of Alzheimer disease (AD).; Objectives: To investigate whether treatment with gantenerumab leads to a measurable reduction in the level of Aβ amyloid in the brain and to elucidate the mechanism of amyloid reduction.; Design: A multicenter, randomized, double-blind, placebo-controlled, ascending-dose […]
Effects of memantine on clinical ratings, fluorodeoxyglucose positron emission tomography measurements, and cerebrospinal fluid assays in patients with moderate to severe Alzheimer dementia: a 24-week, randomized, clinical trial
Wang, Tao,
Huang, Qiu,
Reiman, Eric M.,
Chen, Kewei,
Li, Xia,
Li, Guanjun,
Lin, Zhiguang,
Li, Chunbo,
Xiao, Shifu
Most experts consider that memantine has a symptomatic treatment, but clinical trials have not yet provided compelling evidence to support a disease-modifying effect. We investigate the effects of memantine on clinical ratings; fluorodeoxyglucose positron emission tomography (FDG-PET) measurements, which can monitor disease-modifying effect; and cerebrospinal fluid (CSF) assays in patients with moderate to severe probable […]
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 […]
Longitudinal progression of cognitive decline correlates with changes in the spatial pattern of brain 18F-FDG PET
Shokouhi, S.,
Claassen, D.,
Kang, H.,
Ding, Z.,
Rogers, B.,
Mishra, A.,
Riddle, W. R.
Unlabelled: Evaluating the symptomatic progression of mild cognitive impairment (MCI) caused by Alzheimer disease (AD) is practically accomplished by tracking performance on cognitive tasks, such as the Alzheimer Disease Assessment Scale’s cognitive subscale (ADAS_cog), the Mini-Mental Status Examination (MMSE), and the Functional Activities Questionnaire (FAQ). The longitudinal relationships between cognitive decline and metabolic function as […]
Impact of molecular imaging on the diagnostic process in a memory clinic
Ossenkoppele, Rik,
Prins, Niels D.,
Pijnenburg, Yolande A.L.,
Lemstra, Afina W.,
van der Flier, Wiesje M.,
Adriaanse, Sofie F.,
Windhorst, Albert D.,
Handels, Ron L.H.,
Wolfs, Claire A.G.,
Aalten, Pauline,
Verhey, Frans R.J.,
Verbeek, Marcel M.,
van Buchem, Mark A.,
Hoekstra, Otto S.,
Lammertsma, Adriaan A.,
Scheltens, Philip,
van Berckel, Bart N.M.
Background: [(11)C]Pittsburgh compound B ([(11)C]PIB) and [(18)F]-2-fluoro-2-deoxy-D-glucose ([(18)F]FDG) PET measure fibrillar amyloid-β load and glucose metabolism, respectively. We evaluated the impact of these tracers on the diagnostic process in a memory clinic population.; Methods: One hundred fifty-four patients underwent paired dynamic [(11)C]PIB and static [(18)F]FDG PET scans shortly after completing a standard dementia screening. Two-year […]
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 […]
Potential impact of amyloid imaging on diagnosis and intended management in patients with progressive cognitive decline
Grundman, Michael,
Pontecorvo, Michael J.,
Salloway, Stephen P.,
Doraiswamy, P. Murali,
Fleisher, Adam S.,
Sadowsky, Carl H.,
Nair, Anil K.,
Siderowf, Andrew,
Lu, Ming,
Arora, Anupa K.,
Agbulos, Abigail,
Flitter, Matthew L.,
Krautkramer, Michael J.,
Sarsour, Khaled,
Skovronsky, Daniel M.,
Mintun, Mark A.
Florbetapir F18 has been approved by the Food and Drug Administration for in vivo assessment of amyloid pathology in patients undergoing evaluation for Alzheimer disease (AD). The aim of this study was to determine the impact of amyloid imaging on the diagnoses and management of patients undergoing evaluation for cognitive decline. Patients were recruited to […]