Results 131 to 140 of about 10,408 (217)
Modeling the Intermediate Flow Regime in Flow‐Compensated Intravoxel Incoherent Motion MRI
ABSTRACT Purpose The intravoxel incoherent motion (IVIM) model is commonly used to separate the effects of motion related to diffusion and blood microcirculation (perfusion) on the MR signal. Depending on the encoding time (T), it is possible to probe the different temporal regimes of blood motion, which resemble a ballistic flow at short T and a ...
Louise Rosenqvist +5 more
wiley +1 more source
ABSTRACT Purpose Diffusion MRI probes tissue microstructure, but low SNR and limited resolution hinder detection of features and parameter estimates. We introduce slice excitation with random overlap (SERO), which enables variable repetition times (TRs) and diffusion weighting within a single shot.
Felix Mortensen +7 more
wiley +1 more source
Respiratory Motion‐Corrected Model‐Based 3D Water‐Fat MRA of the Thorax at 0.55 T
ABSTRACT Purpose The goal of this study was to develop a 5‐min 3D MRA acquisition at 0.55 T with predictable scan time, 100% data efficiency, and robust water‐fat separation. Methods For full data efficiency, the proposed method combined self‐gating with retrospective motion correction while ensuring a predictable 5‐min scan time.
Robert Stoll +5 more
wiley +1 more source
Principles of Pulsed Eddy Current Nondestructive Testing [PDF]
openaire +1 more source
ABSTRACT Purpose Blood T1 is a key parameter for hemodynamic quantification in both non‐contrast‐ and contrast‐enhanced imaging. Individual vessel T1 has been measured using a modified Look–Locker scheme with multi‐shot EPI or FLASH in high spatial resolution, requiring ∼1 min.
Zechen Xu, Feng Xu, Qin Qin, Dan Zhu
wiley +1 more source
ABSTRACT Purpose Oscillating‐gradient spin‐echo (OGSE) diffusion MRI probes cell geometry and membrane integrity through the frequency‐dependence of kurtosis, but prior studies have reported inconsistent findings depending on how frequency is varied. We compared frequency‐dependent kurtosis in the human brain under two regimes: varying frequency with ...
Dongsuk Sung +8 more
wiley +1 more source
ABSTRACT Purpose Numerical simulations can be adopted to aid the evaluation of the interaction between switched gradient fields and metallic implants and estimate the possible temperature increase. Anyway, an analysis of the consistency of their prediction with experiments is lacking, differently from what can be found for exposure to radiofrequency ...
Umberto Zanovello +5 more
wiley +1 more source
Electromagnetic interference (EMI) is a significant challenge for low‐field MRI. Traditional EMI mitigation approaches either limit portability or demand advanced hardware. We present FENCE (Flexible Electromagnetic Noise reduCtion Endo‐shield), a novel approach for EMI mitigation using flexible PCBs placed inside the RF coil.
Julia Pfitzer +2 more
wiley +1 more source
Sorghum Protein: Ethanol‐Based Extraction to Improve Yield and Properties
A key barrier to expanding the use of sorghum‐based proteins is the challenge related to protein extraction and utilization via conventional methods. This work evaluated a blended solvent approach (ethanol:alkali) for protein extraction from ground, pearled sorghum and wet‐milled sorghum protein meal to improve yield and properties.
Milagros P. Hojilla‐Evangelista +1 more
wiley +1 more source
Comparative analysis of the structural, thermal, and textural properties of four animal‐based seafood species – salmon, scallop, squid, and snapper and their commercially available plant‐based analogues. ABSTRACT This study compares the structural and functional properties of four animal‐based seafood species such as salmon, scallop, squid, and snapper,
Deepa Agarwal +6 more
wiley +1 more source

