Early microstructural aberrations in a mouse model of Alzheimer’s disease detected by Soma and Neurite Density Imaging
Andrada Ianus1, Renata Cruz1, Cristina Chavarrias1, Marco Palombo2,3,4, and Noam Shemesh1
1Champalimaud Research, Champalimaud Centre for the Unknown, Lisbon, Portugal, 2Centre for Medical Image Computing (CMIC), Dept of Computer Science, University College London, London, United Kingdom, 3Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology, Cardiff University, Cardiff, United Kingdom, 4School of Computer Science and Informatics, Cardiff University, Cardiff, United Kingdom
Alzheimer’s disease induces early morphological tissue changes which precede the onset of symptoms and can be important targets for neuroimaging. In this work we employ Soma and Neurite Density Imaging (SANDI), a biophysical modelling approach for diffusion MRI, to investigate tissue microstructure alterations in the 3xTg AD mouse model and compare it with the state-of-the-art Diffusion Kurtosis Imaging (DKI).
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