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Abstract #1508

Brain tissue conductivity decreases with age

Jun Cao1, Joseph Philby1, Iain K Ball2, and Caroline D Rae1,3
1Neuroscience Research Australia, Randwick, Australia, 2Philips Australia & New Zealand, North Ryde, Australia, 3School of Psychology, The University of New South Wales, Kensington, Australia

Synopsis

Keywords: Aging, Electromagnetic Tissue Properties

Motivation: Human brain tissue conductivity with age can provide auxiliary information for healthy aging, as well as benefiting brain electromagnetic modelling and specific absorption rate estimation.

Goal(s): To investigate the relationship between age and brain tissue conductivity.

Approach: Using MREPT, data were acquired from 161 healthy participants, and the brain tissue conductivity values were extracted and analysed.

Results: Brain tissue conductivity decreased over age, and the rate of decrease in female participants was less than that in males.

Impact: Brain tissue conductivity is a potential biomarker for healthy aging, and the change over time is expected to be considered in many applications.

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