Results 181 to 190 of about 12,287 (261)
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To accelerate MRI further, rapid B0 field modulations can be applied during oversampled readout to capture additional physical information, as in Wave‐CAIPI/FRONSAC/local B0 coils modulation techniques. These methods, however, turn the Fourier readout into a non‐Fourier‐encoded dimension that cannot be reconstructed by FFT, posing ...
Rui Tian, Klaus Scheffler
wiley +1 more source
Dynamic slip wall model for large-eddy simulation. [PDF]
J Fluid Mech, 2019 Bae HJ +3 more
europepmc +1 more source
View Order With Arbitrary Center Echoes
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To provide explicit, vendor‐independent view‐order constructions that enable selection of an arbitrary center echo in multi‐shot imaging, with a focus on RARE and MPRAGE. Methods Vendor‐independent view‐order methods were developed to assign echo and shot indices to a prescribed set of phase encodes, enabling explicit selection of the ...
Henric Rydén +4 more
wiley +1 more source
Error scaling of large-eddy simulation in the outer region of wall-bounded turbulence. [PDF]
J Comput Phys, 2019 Lozano-Durán A, Bae HJ.
europepmc +1 more source
Real‐Time Targeted Slice Reacquisition for Motion‐Corrupted Fetal Diffusion MRI
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To develop and evaluate a real‐time framework for targeted slice‐level reacquisition in fetal diffusion MRI. Methods A DW‐SE‐EPI sequence was modified to support independent diffusion preparation per slice. A pathology‐robust nnU‐Net segmentation network, updated from a previously published baseline (V1) using pathological fetal cases ...
Jordina Aviles Verdera +7 more
wiley +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To present a novel, nonlinear subspace modeling and joint k–q‐space reconstruction technique for high‐resolution, multi‐band, multi‐shell diffusion‐weighted imaging (DWI). Methods High b‐value (> 1000 s/mm2), high resolution DWI has the drawback of generally low signal‐to‐noise ratios (SNRs).
Julius Glaser +4 more
wiley +1 more source
Comparative Systematic Analysis of Gray Matter Biophysical Models on a Public Dataset
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Biophysical models of diffusion tailored to characterize gray matter (GM) microstructure are gaining traction in the neuroimaging community. NEXI, SMEX, SANDI, and SANDIX represent recent efforts to account for different microstructural features, such as soma contributions and inter‐compartment exchange, in the diffusion MRI (dMRI ...
Santiago Mezzano +6 more
wiley +1 more source
The Effect of Splitting Timing on Mixing in a Jet with Double Injections: A Large-Eddy Simulation Study. [PDF]
Flow Turbul Combust, 2018 Hadadpour A, Jangi M, Bai XS.
europepmc +1 more source
Combined ADC and T2 Mapping in the Prostate Using a 3D Reduced FOV Sequence
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To develop a 3D reduced FOV sequence for combined ADC and T2 mapping in the prostate in a single scan. Methods A 3D ADC and T2 mapping reduced FOV acquisition is enabled using T2 and diffusion preparation modules with slab‐selective tip‐down pulses and magnitude stabilizer gradients.
Yannik Ott +8 more
wiley +1 more source
Turbulence intensities in large-eddy simulation of wall-bounded flows. [PDF]
Phys Rev Fluids, 2018 Bae HJ +3 more
europepmc +1 more source