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(four dimensional 4D)
2,268 results
  • 4D functional ultrasound imaging of whole-brain activity in rodents. [Journal Article]
    Nat Methods 2019; 16(10):994-997Rabut C, Correia M, … Tanter M
  • We extended the capabilities of functional ultrasound to whole-brain four-dimensional (4D) neuroimaging. Our multiplane-wave transmission scheme on matrix arrays at thousands of frames per second provides volumetric recordings of cerebral blood volume changes at high spatiotemporal resolution. We illustrated the approach in rats while providing multiple sensory stimuli, for 4D functional connecti…
  • Polarization nano-tomography of tightly focused light landscapes by self-assembled monolayers. [Journal Article]
    Nat Commun 2019; 10(1):4308Otte E, Tekce K, … Denz C
  • Recently, four-dimensional (4D) functional nano-materials have attracted considerable attention due to their impact in cutting-edge fields such as nano-(opto)electronics, -biotechnology or -biomedicine. Prominent optical functionalizations, representing the fourth dimension, require precisely tailored light fields for its optimal implementation. These fields need to be like-wise 4D, i.e., nano-st…
  • Clinical Applications of MRA 4D-Flow. [Review]
    Curr Treat Options Cardiovasc Med 2019; 21(10):58Sierra-Galan LM, François CJ
  • Four-dimensional (4D)-Flow cardiovascular magnetic resonance (CMR) is three-dimensional, time-resolved, three-directional velocity-encoded magnetic resonance that provides flow velocity data within a volumetric region across the cardiac cycle (CC). The goals of this paper are to review the current clinical applications of this technique; provide an overview of the general physics; discuss key poi…
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