Statistical analysis of noise in MRI

S Aja-Fernández, G Vegas-Sánchez-Ferrero - Switzerland: Springer …, 2016 - Springer
This work is the result of more than 10 years of research in the area of MRI from a signal and
noise perspective. Our interest has always been to properly model the noise that affects our …

Nonlinear GRAPPA: A kernel approach to parallel MRI reconstruction

Y Chang, D Liang, L Ying - Magnetic Resonance in Medicine, 2012 - Wiley Online Library
GRAPPA linearly combines the undersampled k‐space signals to estimate the missing k‐
space signals where the coefficients are obtained by fitting to some auto‐calibration signals …

K-space and image domain collaborative energy-based model for parallel MRI reconstruction

Z Tu, C Jiang, Y Guan, J Liu, Q Liu - Magnetic Resonance Imaging, 2023 - Elsevier
Decreasing magnetic resonance (MR) image acquisition times can potentially make MR
examinations more accessible. Prior arts including the deep learning models have been …

WKGM: weighted k‐space generative model for parallel imaging reconstruction

Z Tu, D Liu, X Wang, C Jiang, P Zhu… - NMR in …, 2023 - Wiley Online Library
Deep learning based parallel imaging (PI) has made great progress in recent years to
accelerate MRI. Nevertheless, it still has some limitations: for example, the robustness and …

Improving accelerated MRI by deep learning with sparsified complex data

Z Jin, QS Xiang - Magnetic Resonance in Medicine, 2023 - Wiley Online Library
Purpose To obtain high‐quality accelerated MR images with complex‐valued reconstruction
from undersampled k‐space data. Methods The MRI scans from human subjects were …

MultiNet PyGRAPPA: Multiple neural networks for reconstructing variable density GRAPPA (a 1H FID MRSI study)

S Nassirpour, P Chang, A Henning - NeuroImage, 2018 - Elsevier
Magnetic resonance spectroscopic imaging (MRSI) is a powerful tool for mapping metabolite
levels across the brain, however, it generally suffers from long scan times. This severely …

Partial fourier reconstruction through data fitting and convolution in k‐space

F Huang, W Lin, Y Li - … in Medicine: An Official Journal of the …, 2009 - Wiley Online Library
A partial Fourier acquisition scheme has been widely adopted for fast imaging. There are
two problems associated with the existing techniques. First, the majority of the existing …

Group feature selection for enhancing information gain in MRI reconstruction

Y Chang, M Saritac - Physics in Medicine & Biology, 2022 - iopscience.iop.org
Magnetic resonance imaging (MRI) has revolutionized radiology. As a leading medical
imaging modality, MRI not only visualizes the structures inside the body but also produces …

An improved non‐Cartesian partially parallel imaging by exploiting artificial sparsity

Z Chen, L Xia, F Liu, Q Wang, Y Li… - Magnetic Resonance …, 2017 - Wiley Online Library
Purpose To improve the performance of non‐Cartesian partially parallel imaging (PPI) by
exploiting artificial sparsity, the generalized autocalibrating partially parallel acquisitions …

Improving GRAPPA using cross‐sampled autocalibration data

H Wang, D Liang, KF King… - Magnetic …, 2012 - Wiley Online Library
In conventional generalized autocalibrating partially parallel acquisitions, the autocalibration
signal (ACS) lines are acquired with a frequency‐encoding direction in parallel to other …