Hong‐Hsi Lee

Distinct cellular processes drive motor skill learning in the human brain

This study uses diffusion MRI and a new model to identify distinct cellular processes underlying motor skill learning in the human brain.

In vivo human neurite exchange imaging (NEXI) at 500 mT/m diffusion gradients

This paper demonstrates in vivo human brain neurite exchange imaging using a high-gradient MRI scanner, showing faster exchange times and spatial variation across cortical regions.

The influence of axonal beading and undulation on axonal diameter mapping

This study quantifies how axonal beading and undulation affect axon diameter estimation in diffusion MRI, showing potential biases up to 100% in pathological conditions.

High-fidelity, high-spatial-resolution diffusion MRI of the ex-vivo whole human brain on the 3T Connectom scanner using structured low-rank EPI ghost correction

This paper introduces a structured low-rank matrix modeling method to correct ghosting in ex vivo dMRI, improving accuracy and reliability of diffusion metrics.

Electron microscopy 3-dimensional segmentation and quantification of axonal dispersion and diameter distribution in mouse brain corpus callosum

The paper segments and quantifies axonal dispersion and diameter in mouse brain corpus callosum using electron microscopy and a semi-automatic algorithm, showing orientation metrics are time-independent while diameter depends on MRI settings.