Magnetic resonance signal moment determination using the Earth's magnetic field

Einar Fridjonsson, S.A. Creber, J.S. Vrouwenvelder, Michael Johns

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    © 2015 Elsevier Inc. All rights reserved. We demonstrate a method to manipulate magnetic resonance data such that the moments of the signal spatial distribution are readily accessible. Usually, magnetic resonance imaging relies on data acquired in so-called k-space which is subsequently Fourier transformed to render an image. Here, via analysis of the complex signal in the vicinity of the centre of k-space we are able to access the first three moments of the signal spatial distribution, ultimately in multiple directions. This is demonstrated for biofouling of a reverse osmosis (RO) membrane module, rendering unique information and an early warning of the onset of fouling. The analysis is particularly applicable for the use of mobile magnetic resonance spectrometers; here we demonstrate it using an Earth's magnetic field system.
    Original languageEnglish
    Pages (from-to)145-150
    Number of pages6
    JournalJournal of Magnetic Resonance
    Volume252
    Early online date28 Jan 2015
    DOIs
    Publication statusPublished - Mar 2015

    Fingerprint

    Magnetic resonance
    Magnetic Fields
    Spatial distribution
    magnetic resonance
    Magnetic Resonance Spectroscopy
    Magnetic resonance spectrometers
    Biofouling
    Earth (planet)
    Magnetic fields
    Osmosis
    moments
    Osmosis membranes
    spatial distribution
    Reverse osmosis
    Fouling
    magnetic fields
    reverse osmosis
    fouling
    warning
    Magnetic Resonance Imaging

    Cite this

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    title = "Magnetic resonance signal moment determination using the Earth's magnetic field",
    abstract = "{\circledC} 2015 Elsevier Inc. All rights reserved. We demonstrate a method to manipulate magnetic resonance data such that the moments of the signal spatial distribution are readily accessible. Usually, magnetic resonance imaging relies on data acquired in so-called k-space which is subsequently Fourier transformed to render an image. Here, via analysis of the complex signal in the vicinity of the centre of k-space we are able to access the first three moments of the signal spatial distribution, ultimately in multiple directions. This is demonstrated for biofouling of a reverse osmosis (RO) membrane module, rendering unique information and an early warning of the onset of fouling. The analysis is particularly applicable for the use of mobile magnetic resonance spectrometers; here we demonstrate it using an Earth's magnetic field system.",
    author = "Einar Fridjonsson and S.A. Creber and J.S. Vrouwenvelder and Michael Johns",
    year = "2015",
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    language = "English",
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    journal = "Journal of Magnetic Resonance",
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    Magnetic resonance signal moment determination using the Earth's magnetic field. / Fridjonsson, Einar; Creber, S.A.; Vrouwenvelder, J.S.; Johns, Michael.

    In: Journal of Magnetic Resonance, Vol. 252, 03.2015, p. 145-150.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Magnetic resonance signal moment determination using the Earth's magnetic field

    AU - Fridjonsson, Einar

    AU - Creber, S.A.

    AU - Vrouwenvelder, J.S.

    AU - Johns, Michael

    PY - 2015/3

    Y1 - 2015/3

    N2 - © 2015 Elsevier Inc. All rights reserved. We demonstrate a method to manipulate magnetic resonance data such that the moments of the signal spatial distribution are readily accessible. Usually, magnetic resonance imaging relies on data acquired in so-called k-space which is subsequently Fourier transformed to render an image. Here, via analysis of the complex signal in the vicinity of the centre of k-space we are able to access the first three moments of the signal spatial distribution, ultimately in multiple directions. This is demonstrated for biofouling of a reverse osmosis (RO) membrane module, rendering unique information and an early warning of the onset of fouling. The analysis is particularly applicable for the use of mobile magnetic resonance spectrometers; here we demonstrate it using an Earth's magnetic field system.

    AB - © 2015 Elsevier Inc. All rights reserved. We demonstrate a method to manipulate magnetic resonance data such that the moments of the signal spatial distribution are readily accessible. Usually, magnetic resonance imaging relies on data acquired in so-called k-space which is subsequently Fourier transformed to render an image. Here, via analysis of the complex signal in the vicinity of the centre of k-space we are able to access the first three moments of the signal spatial distribution, ultimately in multiple directions. This is demonstrated for biofouling of a reverse osmosis (RO) membrane module, rendering unique information and an early warning of the onset of fouling. The analysis is particularly applicable for the use of mobile magnetic resonance spectrometers; here we demonstrate it using an Earth's magnetic field system.

    U2 - 10.1016/j.jmr.2015.01.013

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    JF - Journal of Magnetic Resonance

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