Back to Search
Start Over
Scattered slice SHARD reconstruction for motion correction in multi-shell diffusion MRI
- Source :
- NeuroImage, Vol 225, Iss, Pp 117437-(2021), Neuroimage
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- Diffusion MRI offers a unique probe into neural microstructure and connectivity in the developing brain. However, analysis of neonatal brain imaging data is complicated by inevitable subject motion, leading to a series of scattered slices that need to be aligned within and across diffusion-weighted contrasts. Here, we develop a reconstruction method for scattered slice multi-shell high angular resolution diffusion imaging (HARDI) data, jointly estimating an uncorrupted data representation and motion parameters at the slice or multiband excitation level. The reconstruction relies on data-driven representation of multi-shell HARDI data using a bespoke spherical harmonics and radial decomposition (SHARD), which avoids imposing model assumptions, thus facilitating to compare various microstructure imaging methods in the reconstructed output. Furthermore, the proposed framework integrates slice-level outlier rejection, distortion correction, and slice profile correction. We evaluate the method in the neonatal cohort of the developing Human Connectome Project (650 scans). Validation experiments demonstrate accurate slice-level motion correction across the age range and across the range of motion in the population. Results in the neonatal data show successful reconstruction even in severely motion-corrupted subjects. In addition, we illustrate how local tissue modelling can extract advanced microstructure features such as orientation distribution functions from the motion-corrected reconstructions.<br />revision. 15 pages, 10 figures, 2 tables
- Subjects :
- RMSE, root-mean-square error
Computer science
Cognitive Neuroscience
Movement
FOS: Physical sciences
050105 experimental psychology
Article
Diffusion MRI
lcsh:RC321-571
FWHM, full width half maximum
03 medical and health sciences
ODF, orientation distribution function
0302 clinical medicine
dMRI, diffusion magnetic resonance imaging
GMM, Gaussian mixture model
Connectome
Image Processing, Computer-Assisted
Humans
0501 psychology and cognitive sciences
Computer vision
Angular resolution
Neonatal imaging
Slice-to-volume reconstruction
lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry
SH, spherical harmonics
Human Connectome Project
Orientation (computer vision)
business.industry
05 social sciences
Multi-shell
Infant, Newborn
Spherical harmonics
Brain
SNR, signal-to-noise ratio
Physics - Medical Physics
EPI, echo planar imaging
SHARD, spherical harmonics and radial decomposition
Shard
Diffusion Magnetic Resonance Imaging
Neurology
dHCP, developing Human Connectome Project
SSP, slice sensitivity profile
Motion correction
Medical Physics (physics.med-ph)
Artificial intelligence
business
030217 neurology & neurosurgery
SVD, singular value decomposition
Subjects
Details
- Language :
- English
- ISSN :
- 10959572
- Volume :
- 225
- Database :
- OpenAIRE
- Journal :
- NeuroImage
- Accession number :
- edsair.doi.dedup.....4ef2a6138fd0741abcf5bbf929a021b7