The IoNS, the NEUR division and NIMA are delighted to invite you to a seminar given by Prof. Tim Dyrby entitled “Zooming In on the Invisible: how we see what MRI can’t”

Danish Research Centre for Magnetic Resonance (DRCMR); Copenhagen University Hospital
Visual Computing Section, Technical University of Denmark

The seminar will take place on Wednesday April 15 from 12:00 to 1:00 p.m. in the room Gerty Cori B (LEW). 

It will be followed by a lunch.

Registration mandatory by April 9^th: https://forms.gle/8XBkfiRjQZu9N8R7A

Abstract:
Diffusion MRI is a non-invasive method that offers novel insights into the brain’s microstructural organization in both health and disease. However, its limited spatial resolution means that we must rely on mathematical models, MRI hardware constraints, and prior anatomical knowledge, which may not capture all anatomical features.

Can we trust these predictions, and how can we determine what the “true anatomy” actually looks like? In this talk, I will explore various 3D imaging modalities and compare how they capture micro-structural organization—from major pathways to axonal fascicles containing only a few axons. I will then relate these observations to the structure–function relationship between axon diameter and signal conduction velocity across different imaging approaches—do they all capture the same features?