Results 21 to 30 of about 197,943 (293)
Interactive fast spin‐echo imaging [PDF]
Magnetic Resonance in Medicine, 2000 It is shown that a spin-echo sequence may be used to acquire T(2)-weighted, high-resolution, high-SNR sections at quasi-real-time frame rates for interactive, diagnostic imaging. A single-shot fast spin-echo sequence was designed which employs driven equilibrium to realign transverse magnetization remaining at the final spin echo. Driven equilibrium is
R F, Busse +4 more
openaire +2 more sources
Известия высших учебных заведений России: Радиоэлектроника, 2019 The well-known method of image reconstruction by projections in magnetic resonance imaging uses spin echo excited by two sinc pulses. The further processing involves forming of the spin echo signal two quadrature components converting them into a digital
S. A. Baruzdin
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Determining the relaxation time from a temperature-dependent scan of the neutron spin-echo signal amplitude [PDF]
EPJ Web of Conferences, 2022 Temperature-dependent scans of the neutron scattering intensity are commonly employed in high energy-resolution quasielastic measurements. Besides serving as a useful diagnostic tool for identifying the temperature range that could give rise to a ...
Mamontov Eugene, Zolnierczuk Piotr
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Competing interactions in semiconductor quantum dots [PDF]
, 2014 We introduce an integrability-based method enabling the study of semiconductor quantum dot models incorporating both the full hyperfine interaction as well as a mean-field treatment of dipole-dipole interactions in the nuclear spin bath.
Araby, Omar El +5 more
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Physical Review Special Topics. Accelerators and Beams, 2007 As a polarized beam is accelerated through a depolarization resonance, its polarization is reduced by a well-defined calculable reduction factor. When the beam subsequently crosses a second resonance, the final beam polarization is considered to be ...
Alexander W. Chao, Ernest D. Courant
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Molecules, 2021 Magnetic resonance imaging is a valuable tool for three-dimensional mapping of soil water processes due to its sensitivity to the substance of interest: water. Since conventional gradient- or spin-echo based pulse sequences do not detect rapidly relaxing
Sabina Haber-Pohlmeier +3 more
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Electric field-driven coherent spin reorientation of optically generated electron spin packets in InGaAs [PDF]
, 2012 Full electric-field control of spin orientations is one of the key tasks in semiconductor spintronics. We demonstrate that electric field pulses can be utilized for phase-coherent +/- pi spin rotation of optically generated electron spin packets in ...
Beschoten, B. +7 more
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SNR-Enhanced, Rapid Electrical Conductivity Mapping Using Echo-Shifted MRI
Tomography, 2022 Magnetic resonance electrical impedance tomography (MREIT) permits high-spatial resolution electrical conductivity mapping of biological tissues, and its quantification accuracy hinges on the signal-to-noise ratio (SNR) of the current-induced magnetic ...
Hyunyeol Lee, Jaeseok Park
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Comparison of Resting-State Brain Activation Detected by BOLD, Blood Volume and Blood Flow
Frontiers in Human Neuroscience, 2018 Resting-state brain activity has been widely investigated using blood oxygenation level dependent (BOLD) contrast techniques. However, BOLD signal changes reflect a combination of the effects of cerebral blood flow (CBF), cerebral blood volume (CBV), as ...
Ke Zhang +3 more
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Diagnostic and Interventional Radiology, 2022 PURPOSEThis study aimed to assess the agreement between liver stiffness (LS) values obtained by the gradient-recalled echo (GRE) magnetic resonance elastography (MRE) and spin-echo echo-planar imaging (SE-EPI) MRE with those of transient elastography (TE)
Jin Woo Yoon +6 more
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