Background: The primary objective of this paper was to examine perspectives and experiences of individuals with cognitive impairment who received an amyloid PET scan and their care partners, with regard to the process, logistics, and decision-making associated with receiving an amyloid PET scan and its results.
Methods: Structured telephone interviews were conducted with 200 randomly sampled scan recipient/care partner dyads from the CARE IDEAS study. The audio-recorded, transcribed responses were analyzed using an inductive qualitative content analytic approach.
Results: Participating individuals and care partners described their experiences in seeking a diagnosis for memory issues, including decision-making and logistics involved with receiving an amyloid PET scan. Participants discussed the factors contributing to their decision to seek a diagnosis for their memory issues and their hopes and expectations in completing the scan. Participants also described the trajectory of this process, and although some described relatively straightforward trajectories, others described problems associated with identifying appropriate providers and coordinating care across numerous providers to obtain a diagnosis for their memory issues. Participants described an additional challenge of physicians attributing cognitive decline to normal aging, rather than signs of a neurodegenerative disorder.
Conclusions: Findings shed light on the barriers and delays that individuals and care partners experience in connecting with physicians and obtaining a comprehensive evaluation for cognitive problems. Results from this study have implications for physicians who provide care to older adults, and specifically highlight the need for greater care coordination and clearer communication with and systems of referral for patients.
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http://dx.doi.org/10.1111/jgs.17937 | DOI Listing |
Alzheimers Dement
January 2025
Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, California, USA.
Introduction: Sleep disturbances are associated with Alzheimer's disease (AD) and Alzheimer's disease and related dementias (ADRD), but the relationship between sleep architecture, particularly rapid eye movement (REM) sleep, and AD/ADRD biomarkers remains unclear.
Methods: We enrolled 128 adults (64 with Alzheimer's disease, 41 with mild cognitive impairment [MCI], and 23 with normal cognition [NC]), mean age 70.8 ± 9.
Alzheimers Dement
January 2025
Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada.
Introduction: We aimed to compare gait between individuals with Alzheimer's disease (AD), dementia with Lewy bodies (DLB), and cognitively unimpaired (CU) individuals and to evaluate the association between gait and regional amyloid beta (Aβ) burden in AD and DLB.
Methods: We included 420 participants (70 AD, 70 DLB, 280 CU) in the Mayo Clinic Study of Aging (MCSA). Gait was assessed using a pressure-sensor walkway.
J Alzheimers Dis
January 2025
Cognivue, Inc., Victor, NY, USA.
Background: Cognivue is an FDA-cleared computerized cognitive test to screen for cognitive impairment included in the Bio-Hermes Study to test blood-based and digital biomarkers' ability to screen for mild cognitive impairment (MCI) and Alzheimer's disease (AD). A subset of cognitively normal individuals have amyloid deposition (Preclinical AD) but no current assessment can identify these individuals in the absence of expensive biomarkers.
Objective: We examined differences in Cognivue performance between amyloid positive and amyloid negative individuals and whether Cognivue could differentiate True Controls (cognitively normal/amyloid negative), Preclinical AD (cognitively normal/amyloid positive), and MCI due to AD (MCI-AD, cognitively impaired/amyloid positive).
J Alzheimers Dis
January 2025
Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation, Brisbane, QLD, Australia.
Background: The introduction of therapeutics for Alzheimer's disease has led to increased interest in precisely quantifying amyloid-β (Aβ) burden for diagnosis, treatment monitoring, and further clinical research. Recent positron emission tomography (PET) hardware innovations including digital detectors have led to superior resolution and sensitivity, improving quantitative accuracy. However, the effect of PET scanner on Centiloid remains relatively unexplored and is assumed to be minimized by harmonizing PET resolutions.
View Article and Find Full Text PDFJ Prev Alzheimers Dis
February 2025
Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China, 154 Anshan Road Tianjin 300052, PR China; Department of Neurology, Tianjin Medical University General Hospital Airport Site, Tianjin 300052, PR China. Electronic address:
Background: Changes in cerebral blood flow (CBF) may contribute to the initial stages of the pathophysiological process in patients with Alzheimer's disease (AD). Hypoperfusion has been observed in several brain regions in patients with mild cognitive impairment (MCI). However, the clinical significance of CBF changes in the early stages of AD is currently unclear.
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