3 papers
physics.med-ph2020
In vivo observation and biophysical interpretation of time-dependent diffusion in human cortical gray matter
Hong-Hsi Lee, Antonios Papaioannou, Dmitry S. Novikov +1
The dependence of the diffusion MRI signal on the diffusion time is a hallmark of tissue microstructure at the scale of the diffusion length. Here we measure the time-dependenc…
physics.med-ph2019
A time-dependent diffusion MRI signature of axon caliber variations and beading
Hong-Hsi Lee, Antonios Papaioannou, Sung-Lyoung Kim +2
MRI provides a unique non-invasive window into the brain, yet is limited to millimeter resolution, orders of magnitude coarser than cell dimensions. Here we show that diffusion MRI…
eess.IV2019
Training a Neural Network for Gibbs and Noise Removal in Diffusion MRI
Matthew J. Muckley, Benjamin Ades-Aron, Antonios Papaioannou +7
We develop and evaluate a neural network-based method for Gibbs artifact and noise removal. A convolutional neural network (CNN) was designed for artifact removal in diffusion-weig…