A General Model to Calculate the Spin–Lattice Relaxation Rate (R1) of Blood, Accounting for Hematocrit, Oxygen Saturation, Oxygen Partial Pressure, and Magnetic Field Strength Under Hyperoxic Conditions
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Magnetic Resonance Imaging"
DOI: 10.1002/jmri.27938
Abstract: Under normal physiological conditions, the spin–lattice relaxation rate (R1) in blood is influenced by many factors, including hematocrit, field strength, and the paramagnetic effects of deoxyhemoglobin and dissolved oxygen. In addition, techniques such as oxygen‐enhanced… read more here.
Keywords: relaxation rate; blood; lattice relaxation; spin lattice ... See more keywords
Simultaneous estimation of cellular water exchange rate, intracellular volume fraction, and longitudinal relaxation rate in cancer cells.
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DOI: 10.1002/nbm.4914
Abstract: PURPOSE To investigate the feasibility of simultaneously estimating cellular water efflux rate (kie ), intracellular longitudinal relaxation rate (R10i ) and intracellular volume fraction (vi ) of a cell suspension using multiple samples with different… read more here.
Keywords: longitudinal relaxation; rate; cellular water; estimation ... See more keywords
Repeatability and reproducibility of longitudinal relaxation rate in 12 small-animal MRI systems
Sign Up to like & getrecommendations! Published in 2019 at "Magnetic Resonance Imaging"
DOI: 10.1016/j.mri.2019.03.008
Abstract: Background Many translational MR biomarkers derive from measurements of the water proton longitudinal relaxation rate R1, but evidence for between-site reproducibility of R1 in small-animal MRI is lacking. Objective To assess R1 repeatability and multi-site… read more here.
Keywords: small animal; longitudinal relaxation; repeatability; reproducibility ... See more keywords
On the influence of two coexisting species of susceptibility-producing structures on the R2∗ relaxation rate.
Sign Up to like & getrecommendations! Published in 2020 at "Magnetic resonance imaging"
DOI: 10.1016/j.mri.2020.06.006
Abstract: PURPOSE Tissue microstructure can influence quantitative magnetic resonance imaging such as relaxation rate measurements. Consequently, relaxation rate mapping can provide useful information on tissue microstructure. In this work, the theory on relaxation mechanisms of the… read more here.
Keywords: species susceptibility; relaxation; relaxation rate; influence ... See more keywords
The effect of muscle length on transcranial magnetic stimulation‐induced relaxation rate in the plantar flexors
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DOI: 10.14814/phy2.13442
Abstract: Transcranial magnetic stimulation (TMS) of the motor cortex during a maximal voluntary contraction (MVC) permits functionally relevant measurements of muscle group relaxation rate (i.e., when muscles are actively contracting under voluntary control). This study's purpose… read more here.
Keywords: length; relaxation; muscle; plantar ... See more keywords
Reproducibility and robustness of motor cortical stimulation to assess muscle relaxation kinetics
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DOI: 10.14814/phy2.15491
Abstract: Transcranial magnetic stimulation (TMS) of the motor cortex can be used during a voluntary contraction to inhibit corticospinal drive to the muscle and consequently induce involuntary muscle relaxation. Our aim was to evaluate the reproducibility… read more here.
Keywords: muscle; stimulation; relaxation; muscle relaxation ... See more keywords
Lindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems
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DOI: 10.3390/e23111409
Abstract: In this paper, we consider the thermal bath Lindblad master equation to describe the quantum nonunitary dynamics of quantum states in a multi-mode bosonic system. For the two-mode bosonic system interacting with an environment, we… read more here.
Keywords: relaxation rate; lindblad dynamics; dynamics disentanglement; multi mode ... See more keywords