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@ARTICLE{Taylor:821080,
author = {Taylor, Alexander J. and Granwehr, Josef and Lesbats,
Clémentine and Krupa, James L. and Six, Joseph S. and
Pavlovskaya, Galina E. and Thomas, Neil R. and Auer,
Dorothee P. and Meersmann, Thomas and Faas, Henryk M.},
title = {{P}robe-{S}pecific {P}rocedure to {E}stimate {S}ensitivity
and {D}etection {L}imits for 19{F} {M}agnetic {R}esonance
{I}maging},
journal = {PLoS one},
volume = {11},
number = {10},
issn = {1932-6203},
address = {Lawrence, Kan.},
publisher = {PLoS},
reportid = {FZJ-2016-06324},
pages = {e0163704 -},
year = {2016},
abstract = {Due to low fluorine background signal in vivo, 19F is a
good marker to study the fate of exogenous molecules by
magnetic resonance imaging (MRI) using equilibrium nuclear
spin polarization schemes. Since 19F MRI applications
require high sensitivity, it can be important to assess
experimental feasibility during the design stage already by
estimating the minimum detectable fluorine concentration.
Here we propose a simple method for the calibration of MRI
hardware, providing sensitivity estimates for a given
scanner and coil configuration. An experimental
“calibration factor” to account for variations in coil
configuration and hardware set-up is specified. Once it has
been determined in a calibration experiment, the sensitivity
of an experiment or, alternatively, the minimum number of
required spins or the minimum marker concentration can be
estimated without the need for a pilot experiment. The
definition of this calibration factor is derived based on
standard equations for the sensitivity in magnetic
resonance, yet the method is not restricted by the limited
validity of these equations, since additional
instrument-dependent factors are implicitly included during
calibration. The method is demonstrated using MR
spectroscopy and imaging experiments with different 19F
samples, both paramagnetically and susceptibility broadened,
to approximate a range of realistic environments.},
cin = {IEK-9},
ddc = {500},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000385504400009},
pubmed = {pmid:27727294},
doi = {10.1371/journal.pone.0163704},
url = {https://juser.fz-juelich.de/record/821080},
}