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Relaxation rates of protons in gadolinium chelates detected with a high- superconducting quantum interference device in microtesla magnetic fields
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10.1063/1.3493737
/content/aip/journal/jap/108/9/10.1063/1.3493737
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/9/10.1063/1.3493737
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Figures

Image of FIG. 1.
FIG. 1.

Detection schematic of high- SQUID-based NMR/MRI system.

Image of FIG. 2.
FIG. 2.

Sequences applied in the SQUID-detected NMR/MRI. Time dependence of (a) measuring field , (b) prepolarization field with , (c) gradient field , (d) 90° pulse and 180° pulse, and (e) FID and spin-echo signals.

Image of FIG. 3.
FIG. 3.

(a) Spin-echo NMR signal for tape water fitted to Eq. (1), (b) as a function of concentration of Gd chelates, (c) as a function of concentration of Gd chelates, and (d) as a function of the magnetic susceptibility of Gd chelates.

Image of FIG. 4.
FIG. 4.

(a) Intensity of FID NMR signal as a function of for different concentrations of Gd chelates, where is the time used to prepolarize the sample and (b) as a function of concentration of Gd chelates.

Image of FIG. 5.
FIG. 5.

(a) Fourier spectrum for 10 ml cylindrical phantom with Gd chelates taken with different TE’s and (b) filtered MRI image for phantom shown in (a) taken with .

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/content/aip/journal/jap/108/9/10.1063/1.3493737
2010-11-02
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Relaxation rates of protons in gadolinium chelates detected with a high-Tc superconducting quantum interference device in microtesla magnetic fields
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/9/10.1063/1.3493737
10.1063/1.3493737
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