Free-breathing MRI techniques for fat and R2* quantification in the liver
Objective To review the recent advancements in free-breathing MRI techniques for proton-
density fat fraction (PDFF) and R2* quantification in the liver, and discuss the current …
density fat fraction (PDFF) and R2* quantification in the liver, and discuss the current …
R mapping in the presence of macroscopic B0 field variations
D Hernando, KK Vigen, A Shimakawa… - Magnetic resonance …, 2012 - Wiley Online Library
R_2^∗ab mapping has important applications in MRI, including functional imaging, tracking
of super‐paramagnetic particles, and measurement of tissue iron levels. However, R_2^∗ab …
of super‐paramagnetic particles, and measurement of tissue iron levels. However, R_2^∗ab …
Image distortion correction for MRI in low field permanent magnet systems with strong B0 inhomogeneity and gradient field nonlinearities
Objective To correct for image distortions produced by standard Fourier reconstruction
techniques on low field permanent magnet MRI systems with strong B _ 0 B 0 …
techniques on low field permanent magnet MRI systems with strong B _ 0 B 0 …
Effect of respiratory motion on free‐breathing 3D stack‐of‐radial liver relaxometry and improved quantification accuracy using self‐gating
X Zhong, T Armstrong, MD Nickel… - Magnetic resonance …, 2020 - Wiley Online Library
Purpose To develop an accurate free‐breathing 3D liver mapping approach and to evaluate
it in vivo. Methods A free‐breathing multi‐echo stack‐of‐radial sequence was applied in 5 …
it in vivo. Methods A free‐breathing multi‐echo stack‐of‐radial sequence was applied in 5 …
Magnetic resonance imaging using a nonuniform Bo (NuBo) field-cycling magnet
K Selvaganesan, Y Wan, Y Ha, B Wu, K Hancock… - Plos one, 2023 - journals.plos.org
Magnetic resonance imaging (MRI) is a powerful noninvasive diagnostic tool with superior
soft tissue contrast. However, access to MRI is limited since current systems depend on …
soft tissue contrast. However, access to MRI is limited since current systems depend on …
3D magnetic resonance fingerprinting on a low-field 50 mT point-of-care system prototype: Evaluation of muscle and lipid relaxation time mapping and comparison …
Objective To implement magnetic resonance fingerprinting (MRF) on a permanent magnet
50 mT low-field system deployable as a future point-of-care (POC) unit and explore the …
50 mT low-field system deployable as a future point-of-care (POC) unit and explore the …
In vivo O‐Space imaging with a dedicated 12 cm Z2 insert coil on a human 3T scanner using phase map calibration
Recently, spatial encoding with nonlinear magnetic fields has drawn attention for its
potential to achieve faster gradient switching within safety limits, tailored resolution in …
potential to achieve faster gradient switching within safety limits, tailored resolution in …
Pseudo‐random center placement O‐space imaging for improved incoherence compressed sensing parallel MRI
Purpose Nonlinear spatial encoding magnetic (SEM) field strategies such as O‐space
imaging have previously reported dispersed artifacts during accelerated scans. Compressed …
imaging have previously reported dispersed artifacts during accelerated scans. Compressed …
Single shot trajectory design for region‐specific imaging using linear and nonlinear magnetic encoding fields
It has recently been demonstrated that nonlinear encoding fields result in a spatially varying
resolution. This work develops an automated procedure to design single‐shot trajectories …
resolution. This work develops an automated procedure to design single‐shot trajectories …
Reconstruction of undersampled radial PatLoc imaging using total generalized variation
In the case of radial imaging with nonlinear spatial encoding fields, a prominent star‐shaped
artifact has been observed if a spin distribution is encoded with an undersampled trajectory …
artifact has been observed if a spin distribution is encoded with an undersampled trajectory …