Results 181 to 190 of about 144,869 (263)
In Vivo Mapping of Catecholaminergic Loss and Iron Deposition in Huntington's Disease
Movement Disorders, EarlyView.Abstract Background The pathophysiology of Huntington's disease (HD) remains obscure. Magnetic resonance imaging (MRI) can reveal in vivo molecular changes related to disease pathology. Objectives To investigate catecholaminergic neuronal integrity and subcortical brain iron accumulation in HD employing neuromelanin‐sensitive MRI, and quantitative ...
Edoardo R. de Natale +11 more
wiley +1 more source
Microstructure.jl: A Julia package for probabilistic microstructure model fitting with diffusion MRI. [PDF]
Imaging Neurosci (Camb)Gong T, Yendiki A.
europepmc +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose The objective of this study was to develop and evaluate an accelerated free‐breathing motion corrected and averaged late gadolinium enhancement MRI (FB PSIR‐MoCo LGE) protocols. Methods Simultaneous multi‐slice (SMS) bSSFP imaging with GC‐LOLA correction and a multiband factor of two was implemented into a FB PSIR‐MoCo LGE sequence ...
Grzegorz Tomasz Kowalik +11 more
wiley +1 more source
HASwinNet: A Swin Transformer-Based Denoising Framework with Hybrid Attention for mmWave MIMO Systems. [PDF]
Entropy (Basel)Han X, Tu H, Ying J, Chen J, Xing Z.
europepmc +1 more source
Accelerating MRI With Longitudinally‐Informed Latent Posterior Sampling
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To accelerate MRI acquisition by incorporating the previous scans of a subject during reconstruction. Although longitudinal imaging constitutes much of clinical MRI, leveraging previous scans is challenging due to the complex relationship between scan sessions, potentially involving substantial anatomical or pathological changes, and ...
Yonatan Urman +4 more
wiley +1 more source
Calibration‐Free GRAPE pTx Pulses for Homogeneous Spatial‐Selective Excitation at 7T
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Extend the universal pulse GRAPE formalism to pulses with a defined spectral response, and apply the concept to spatial selection. Methods We added Bloch simulations at several frequencies for each voxel to the pulse calculation to create universal spectrally‐selective GRAPE pulses.
Daniel Löwen +6 more
wiley +1 more source
Modeling the Intermediate Flow Regime in Flow‐Compensated Intravoxel Incoherent Motion MRI
Magnetic Resonance in Medicine, EarlyView.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
Effects and Correction of Patient Bulk Motion in Cranial DENSE MRI
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Applications of DENSE to measure cardiac driven brain tissue pulsations are highly sensitive to bulk patient motion due to the sub‐millimeter displacement encoding required, limiting its accuracy, reproducibility, and use in pediatric and aging populations.
Caroline A. Doctor +4 more
wiley +1 more source