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Maudsley, 1988 - Google Patents

Dynamic range improvement in NMR imaging using phase scrambling

Maudsley, 1988

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Document ID
7730788640427673402
Author
Maudsley A
Publication year
Publication venue
Journal of Magnetic Resonance (1969)

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Snippet

Data collection efficiency in NMR imaging is impaired if the dynamic range of the receiver system is limited in comparison with that of the observed signal. This situation may occur in high-resolution proton imaging of large objects at high magnetic field strengths. The …
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    • G01R33/5617—Echo 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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    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
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    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques

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