72 citations · 97 across the 9 of their papers we have counts for
9 papers
Velocity Spectrum Imaging using velocity encoding preparation pulses
Luis Hernandez-Garcia, Alberto L. Vazquez, Doug C. Noll
Purpose: The goal of this article is to introduce a technique to measure the velocity distribution of water inside each voxel of an MR image. The method is based on the use of moti…
Spatiotemporal Maps for Dynamic MRI Reconstruction
Rodrigo A. Lobos, Xiaokai Wang, Rex T. L. Fung +6
The partially separable functions (PSF) model is commonly adopted in dynamic MRI reconstruction, as is the underlying signal model in many reconstruction methods including the ones…
Adaptive Sampling for Linear Sensing Systems via Langevin Dynamics
Guanhua Wang, Douglas C. Noll, Jeffrey A. Fessler
Adaptive or dynamic signal sampling in sensing systems can adapt subsequent sampling strategies based on acquired signals, thereby potentially improving image quality and speed. Th…
Stochastic Optimization of 3D Non-Cartesian Sampling Trajectory (SNOPY)
Guanhua Wang, Jon-Fredrik Nielsen, Jeffrey A. Fessler +1
Optimizing 3D k-space sampling trajectories for efficient MRI is important yet challenging. This work proposes a generalized framework for optimizing 3D non-Cartesian sampling patt…
Off-resonance artifact correction for magnetic resonance imaging: a review
Melissa W. Haskell, Jon-Fredrik Nielsen, Douglas C. Noll
In magnetic resonance imaging (MRI), inhomogeneity in the main magnetic field used for imaging, referred to as off-resonance, can lead to image artifacts ranging from mild to sever…
Paying U-Attention to Textures: Multi-Stage Hourglass Vision Transformer for Universal Texture Synthesis
Shouchang Guo, Valentin Deschaintre, Douglas Noll +1
We present a novel U-Attention vision Transformer for universal texture synthesis. We exploit the natural long-range dependencies enabled by the attention mechanism to allow our ap…
Manifold Model for High-Resolution fMRI Joint Reconstruction and Dynamic Quantification
Shouchang Guo, Jeffrey A. Fessler, Douglas C. Noll
Oscillating Steady-State Imaging (OSSI) is a recent fMRI acquisition method that exploits a large and oscillating signal, and can provide high SNR fMRI. However, the oscillatory na…
B-spline Parameterized Joint Optimization of Reconstruction and K-space Trajectories (BJORK) for Accelerated 2D MRI
Guanhua Wang, Tianrui Luo, Jon-Fredrik Nielsen +2
Optimizing k-space sampling trajectories is a promising yet challenging topic for fast magnetic resonance imaging (MRI). This work proposes to optimize a reconstruction method and…
Joint Design of RF and gradient waveforms via auto-differentiation for 3D tailored excitation in MRI
Tianrui Luo, Douglas C. Noll, Jeffrey A. Fessler +1
This paper proposes a new method for joint design of radiofrequency (RF) and gradient waveforms in Magnetic Resonance Imaging (MRI), and applies it to the design of 3D spatially ta…