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Abstract #0580

ASL spatial coefficient of variance predicts increased white matter hyperintensities volume over time in cognitively unimpaired subjects

Beatriz Padrela1, Lyduine E Collij1, Luigi Lorenzini1, Silvia Ingala1, Carole Sudre1, Pieter Jelle Visser2, Anouk den Braber2, Frederik Barkhof1,3, Jan Petr4, and Henk J.M.M. Mutsaerts1
1Radiology and Nuclear Medicine, Amsterdam UMC, Amsterdam, Netherlands, 2Department of Neurology, Neuroscience Campus Amsterdam, VU University Medical Center, Location VUmc, Alzheimer Center, Amsterdam, Netherlands, 3University College London, Centre for Medical Image Computing (CMIC), London, United Kingdom, 4Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany

Synopsis

Keywords: Neurodegeneration, Perfusion, Cerebral blood flow, DementiaArterial transit artifacts (ATAs) in arterial spin labeling (ASL) images are common in populations with prolonged arterial transit time (ATT) and may be associated with vascular insufficiency. The spatial coefficient of variance (sCoV) of ASL images can quantify the presence of these artifacts. Vascular insufficiency could contribute to the development of white matter hyperintensities (WMH), a common marker of cerebral small vessel disease. We demonstrated that baseline sCoV of CBF is associated with WMH at baseline and predicts WMH volume change, in a cognitively unimpaired population of 88 subjects.

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