Articles with "space sampling" as a keyword



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Desynchronization of Cartesian k‐space sampling and periodic motion for improved retrospectively self‐gated 3D lung MRI using quasi‐random numbers

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Published in 2017 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.26159

Abstract: To demonstrate that desynchronization between Cartesian k‐space sampling and periodic motion in free‐breathing lung MRI improves the robustness and efficiency of retrospective respiratory self‐gating. read more here.

Keywords: space sampling; lung mri; cartesian space; periodic motion ... See more keywords
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Improving spreading projection algorithm for rapid k-space sampling trajectories through minimized off-resonance effects and gridding of low frequencies.

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Published in 2023 at "Magnetic resonance in medicine"

DOI: 10.1002/mrm.29702

Abstract: PURPOSE Non-Cartesian MRI with long arbitrary readout directions are susceptible to off-resonance artifacts due to patient induced B 0 $$ {B}_0 $$ inhomogeneities. This results in degraded image quality with strong signal losses and blurring.… read more here.

Keywords: space sampling; space; algorithm; resonance artifacts ... See more keywords
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Tools for visualizing and analyzing Fourier space sampling in Cryo-EM.

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Published in 2020 at "Progress in biophysics and molecular biology"

DOI: 10.1016/j.pbiomolbio.2020.06.003

Abstract: A complete understanding of how an orientation distribution contributes to a cryo-EM reconstruction remains lacking. It is necessary to begin critically assessing the set of views to gain an understanding of its effect on experimental… read more here.

Keywords: space sampling; space; fourier space; cryo ... See more keywords
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Closed-loop control of k-space sampling via physiologic feedback for cine MRI

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Published in 2020 at "PLoS ONE"

DOI: 10.1371/journal.pone.0244286

Abstract: Background Segmented cine cardiac MRI combines data from multiple heartbeats to achieve high spatiotemporal resolution cardiac images, yet predefined k-space segmentation trajectories can lead to suboptimal k-space sampling. In this work, we developed and evaluated… read more here.

Keywords: space sampling; space; loop control; mri ... See more keywords
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Novel Molecular-Dynamics-Based Protocols for Phase Space Sampling in Complex Systems

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Published in 2018 at "Frontiers in Chemistry"

DOI: 10.3389/fchem.2018.00495

Abstract: The adequate exploration of the phase space of a chromophore is a fundamental necessity for the simulation of their optical and photophysical properties, taking into account the effects of vibrational motion and, most importantly, the… read more here.

Keywords: space sampling; molecular dynamics; new protocols; dynamics based ... See more keywords