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Watanabe, 2012 - Google Patents

Investigation of the asymmetric distributions of RF transmission and reception fields at high static field

Watanabe, 2012

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Document ID
3302666728293053480
Author
Watanabe H
Publication year
Publication venue
Magnetic Resonance in Medical Sciences

External Links

Snippet

When radiofrequency (RF) transmission ˆeld represents B1+, the reception ˆeld represents B1-*. The distribution of those maps demonstrates asymmetric features at high ˆeld magnetic resonance (MR) imaging. Both maps are in mirror symmetry to one another. Almost …
Continue reading at www.jstage.jst.go.jp (PDF) (other versions)

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    • G01R33/5615Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5617Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using RF refocusing, e.g. RARE
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    • G01R33/5601Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution involving use of a contrast agent for contrast manipulation, e.g. a paramagnetic, super-paramagnetic, ferromagnetic or hyperpolarised contrast agent
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