Noise and non-neuronal contributions to the BOLD signal: applications to and insights from animal studies
The BOLD signal reflects hemodynamic events within the brain, which in turn are driven by
metabolic changes and neural activity. However, the link between BOLD changes and …
metabolic changes and neural activity. However, the link between BOLD changes and …
Reference‐free single‐pass EPI N yquist ghost correction using annihilating filter‐based low rank H ankel matrix (ALOHA)
Purpose MR measurements from an echo‐planar imaging (EPI) sequence produce Nyquist
ghost artifacts that originate from inconsistencies between odd and even echoes. Several …
ghost artifacts that originate from inconsistencies between odd and even echoes. Several …
Dual‐polarity GRAPPA for simultaneous reconstruction and ghost correction of echo planar imaging data
WS Hoge, JR Polimeni - Magnetic resonance in medicine, 2016 - Wiley Online Library
Purpose The purpose of this study was to seek improved image quality from accelerated
echo planar imaging (EPI) data, particularly at ultrahigh fields. Certain artifacts in EPI …
echo planar imaging (EPI) data, particularly at ultrahigh fields. Certain artifacts in EPI …
Navigator-free EPI ghost correction with structured low-rank matrix models: New theory and methods
Structured low-rank matrix models have previously been introduced to enable
calibrationless MR image reconstruction from sub-Nyquist data, and such ideas have …
calibrationless MR image reconstruction from sub-Nyquist data, and such ideas have …
Improved least squares MR image reconstruction using estimates of k‐Space data consistency
This study describes a new approach to reconstruct data that has been corrupted by
unfavorable magnetization evolution. In this new framework, images are reconstructed in a …
unfavorable magnetization evolution. In this new framework, images are reconstructed in a …
Partial Fourier transform reconstruction for single‐shot MRI with linear frequency‐swept excitation
A novel image encoding approach based on linear frequency‐swept excitation has been
recently proposed to overcome artifacts induced by various field perturbations in single‐shot …
recently proposed to overcome artifacts induced by various field perturbations in single‐shot …
Robust EPI Nyquist ghost removal by incorporating phase error correction with sensitivity encoding (PEC‐SENSE)
Purpose The existing approach of Nyquist ghost correction by parallel imaging in echo
planar imaging (EPI) can suffer from image noise amplification. We propose a method that …
planar imaging (EPI) can suffer from image noise amplification. We propose a method that …
k‐Space deep learning for reference‐free EPI ghost correction
Purpose Nyquist ghost artifacts in echo planar imaging (EPI) are originated from phase
mismatch between the even and odd echoes. However, conventional correction methods …
mismatch between the even and odd echoes. However, conventional correction methods …
Learning from synthetic data for reference‐free Nyquist ghost correction and parallel imaging reconstruction of echo planar imaging
Background Echo planar imaging (EPI) suffers from Nyquist ghost caused by eddy currents
and other non‐ideal factors. Deep learning has received interest for EPI ghost correction …
and other non‐ideal factors. Deep learning has received interest for EPI ghost correction …
Model‐based iterative reconstruction for single‐shot EPI at 7 T
Purpose To describe a model‐based reconstruction strategy for single‐shot echo planar
imaging (EPI) that intrinsically accounts for k‐space nonuniformity, Nyquist ghosting, and …
imaging (EPI) that intrinsically accounts for k‐space nonuniformity, Nyquist ghosting, and …