Projects per year
Abstract
INTRODUCTION: It is generally assumed that intracranial volume (ICV) remains constant after peaking in early adulthood. Thus ICV is used as a 'proxy' for original brain size when trying to estimate brain atrophy in older people in neuroimaging studies. However, physiological changes in the skull, such as thickening of the frontal inner table, are relatively common in older age and will reduce ICV. The potential influence that inner table skull thickening may have on ICV measurement in old age has yet to be investigated. METHODS: We selected 60 (31 males, 29 females) representative older adults aged 71.1-74.3years from a community-dwelling ageing cohort, the Lothian Birth Cohort 1936. A semi-automatically derived current ICV measurement obtained from high resolution T1-weighted volume scans was compared to the estimated original ICV by excluding inner skull table thickening using expert manual image processing. RESULTS: Inner table skull thickening reduced ICV from an estimated original 1480.0ml to a current 1409.1ml, a median decrease of 7.3% (Z=-6.334; p
Original language | English |
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Pages (from-to) | 918-922 |
Number of pages | 5 |
Journal | Magnetic Resonance Imaging |
Volume | 31 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jul 2013 |
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Dive into the research topics of 'Influence of thickening of the inner skull table on intracranial volume measurement in older people'. Together they form a unique fingerprint.Projects
- 5 Finished
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RA2661 Centre for Cognitive Ageing and Cognitive Epidemiology Phase 2. Main Budget.
Deary, I., Gale, C., Holmes, M., Logie, P., Maclullich, A., Porteous, D., Seckl, J., Starr, J., Wardlaw, J. & Okely, J.
1/09/13 → 31/08/19
Project: Research
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MRC Centre for Cognitive Ageing and Cognitive Epidemiology
Deary, I., Holmes, M., Logie, P., McCulloch, J., Porteous, D., Roberts, N., Seckl, J., Starr, J. & Wardlaw, J.
1/09/08 → 31/08/13
Project: Research
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Brain White mater imaging and cognitive ageing in the Lothian Birth Cohort of 1936:II
Deary, I., Bastin, M., Penke, L., Starr, J. & Wardlaw, J.
8/06/11 → 7/03/15
Project: Research