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Social and Behavioral Sciences Commons™
Open Access. Powered by Scholars. Published by Universities.®
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- 80 and over (1)
- Aged (1)
- Aged, 80 and over (1)
- Aging (1)
- Brain (1)
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- Cerebrovascular disease (1)
- Computer-Assisted (1)
- Decline (1)
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- Humans (1)
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- Image Interpretation, Computer-Assisted (1)
- Magnetic Resonance Imaging (1)
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- Mobility (1)
- Neuroimaging (1)
- Sources of variability (1)
- Volumetric analysis (1)
- White Matter (1)
- White matter hyperintensity (1)
Articles 1 - 2 of 2
Full-Text Articles in Social and Behavioral Sciences
Post-Acquisition Processing Confounds In Brain Volumetric Quantification Of White Matter Hyperintensities, Ahmed A. Bahrani, Omar M. Al-Janabi, Erin L. Abner, Shoshana H. Bardach, Richard J. Kryscio, Donna M. Wilcock, Charles D. Smith, Gregory A. Jicha
Post-Acquisition Processing Confounds In Brain Volumetric Quantification Of White Matter Hyperintensities, Ahmed A. Bahrani, Omar M. Al-Janabi, Erin L. Abner, Shoshana H. Bardach, Richard J. Kryscio, Donna M. Wilcock, Charles D. Smith, Gregory A. Jicha
Neurology Faculty Publications
BACKGROUND: Disparate research sites using identical or near-identical magnetic resonance imaging (MRI) acquisition techniques often produce results that demonstrate significant variability regarding volumetric quantification of white matter hyperintensities (WMH) in the aging population. The sources of such variability have not previously been fully explored.
NEW METHOD: 3D FLAIR sequences from a group of randomly selected aged subjects were analyzed to identify sources-of-variability in post-acquisition processing that can be problematic when comparing WMH volumetric data across disparate sites. The methods developed focused on standardizing post-acquisition protocol processing methods to develop a protocol with less than 0.5% inter-rater variance.
RESULTS: A series …
Hospitalization-Associated Change In Gait Speed And Risk Of Functional Limitations For Older Adults, Wei Duan-Porter, Tien N. Vo, Kristen Ullman, Lisa Langsetmo, Elsa S. Strotmeyer, Brent C. Taylor, Adam J. Santanasto, Peggy M. Cawthon, Anne B. Newman, Eleanor M. Simonsick, Teresa M. Waters, Kristine E. Ensrud
Hospitalization-Associated Change In Gait Speed And Risk Of Functional Limitations For Older Adults, Wei Duan-Porter, Tien N. Vo, Kristen Ullman, Lisa Langsetmo, Elsa S. Strotmeyer, Brent C. Taylor, Adam J. Santanasto, Peggy M. Cawthon, Anne B. Newman, Eleanor M. Simonsick, Teresa M. Waters, Kristine E. Ensrud
Health Management and Policy Faculty Publications
BACKGROUND: Hospitalization-associated functional decline is a common problem for older adults, but it is unclear how hospitalizations affect physical performance measures such as gait speed. We sought to determine hospitalization-associated change in gait speed and likelihood of new limitations in mobility and activities of daily living (ADLs).
METHODS: We used longitudinal data over 5 years from the Health, Aging and Body Composition Study, a prospective cohort of black and white community-dwelling men and women, aged 70-79 years, who had no limitations in mobility (difficulty walking 1/4 mile or climbing 10 steps) or ADLs (transferring, bathing, dressing, and eating) at baseline. …