TY - JOUR
T1 - Magnetic resonance signal moment determination using the Earth's magnetic field
AU - Fridjonsson, Einar Orn
AU - Creber, Sarah A.
AU - Vrouwenvelder, Johannes S.
AU - Johns, Michael L.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors acknowledge funding for the Earth's field NMR instrument from the ARC via LE110100189. SAC acknowledges scholarship funding from the Cambridge Commonwealth Trust.
PY - 2015/3
Y1 - 2015/3
N2 - 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 - 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.
UR - http://hdl.handle.net/10754/564089
UR - https://linkinghub.elsevier.com/retrieve/pii/S1090780715000142
UR - http://www.scopus.com/inward/record.url?scp=84923108708&partnerID=8YFLogxK
U2 - 10.1016/j.jmr.2015.01.013
DO - 10.1016/j.jmr.2015.01.013
M3 - Article
C2 - 25700116
SN - 1090-7807
VL - 252
SP - 145
EP - 150
JO - Journal of Magnetic Resonance
JF - Journal of Magnetic Resonance
ER -