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Brain MRI with laser-polarized129xe

Brain MRI with laser-polarized129xe,10.1002/mrm.1910380503,Magnetic Resonance in Medicine,Scott D. Swanson,Matthew S. Rosen,Bernard W. Agranoff,Kevin

Brain MRI with laser-polarized129xe   (Citations: 47)
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Journal: Magnetic Resonance in Medicine - MAGN RESON MED , vol. 38, no. 5, pp. 695-698, 1997
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    • ...2 dt86 , [5] with A0 representing the initial transverse magnetization...
    • ...We now consider the acquisition of a 2-D slice with EPI (see Fig. 1). If t is the duration of the readout window for each phase-encoding step, then the loss of magnetization due to diffusion in the frequency-encoding (x) direction given by Eq. [5] occurs independently for each interval t between the echo peaks (32)...
    • ...Eq. [5] for a square-wave gradient of peak amplitude G0 ,w e obtain...
    • ...The initial intense but short negative wind-up gradient causes negligible diffusive attenuation compared to the constant weaker gradient that follows it (see Fig. 1). This follows directly from the fact that the limit of the argument of the exponential in Eq. [5], taken as t = 0 while holding Dx (i.e., the integral over dt9) constant, is zero...

    Brian Saamet al. Rapid imaging of hyperpolarized gas using EPI

    • ...To improve interpretation of xenon tissue images, several studies have identified characteristics of xenon-tissue and xenon-biomolecule interactions [1,3-6]...

    Thomas J. Loweryet al. Applications of laser-polarized 129Xe to biomolecular assays

    • ...Functional MRI may take advantage of the solubility and lipophilic properties of Xe (Mugler et al 1997; Swanson et al. 1997; Wagshul et al. 1996), its binding to haemoglobin has already been utilized to measure blood oxygenation (Wolber et al. 2000)...

    Silvio Aimeet al. Agents for Polarization Enhancement in MRI

    • ...One promising technique is laser polarized xenon MRI (Swanson et al. 1997)...

    Scott D. Swanson. MR Methods to Measure Cerebral Perfusion

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