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@ARTICLE{Menzel:859132,
author = {Menzel, Miriam and Axer, Markus and Amunts, Katrin and De
Raedt, Hans and Michielsen, Kristel},
title = {{D}iattenuation {I}maging reveals different brain tissue
properties},
journal = {Scientific reports},
volume = {9},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {FZJ-2019-00068},
pages = {1939},
year = {2019},
abstract = {When transmitting polarised light through histological
brain sections, different types of diattenuation
(polarisation-dependent attenuation of light) can be
observed: In some brain regions, the light is minimally
attenuated when it is polarised parallel to the nerve fibres
(referred to as D+), in others, it is maximally attenuated
(referred to as D-). The underlying mechanisms of these
effects and their relationship to tissue properties were so
far unknown. Here, we demonstrate in experimental studies
that diattenuation of both types D+ and D- can be observed
in brain tissue samples from different species (rodent,
monkey, and human) and that the strength and type of
diattenuation depend on the nerve fibre orientations. By
combining finite-difference time-domain simulations and
analytical modelling, we explain the observed diattenuation
effects and show that they are caused both by anisotropic
absorption (dichroism) and by anisotropic light scattering.
Our studies demonstrate that the diattenuation signal
depends not only on the nerve fibre orientations but also on
other brain tissue properties like tissue homogeneity, fibre
size, and myelin sheath thickness. This allows to use the
diattenuation signal to distinguish between brain regions
with different tissue properties and establishes
Diattenuation Imaging as a valuable imaging technique.},
cin = {INM-1 / JSC / JARA-HPC},
ddc = {600},
cid = {I:(DE-Juel1)INM-1-20090406 / I:(DE-Juel1)JSC-20090406 /
$I:(DE-82)080012_20140620$},
pnm = {574 - Theory, modelling and simulation (POF3-574) / 511 -
Computational Science and Mathematical Methods (POF3-511) /
SMHB - Supercomputing and Modelling for the Human Brain
(HGF-SMHB-2013-2017) / HBP SGA1 - Human Brain Project
Specific Grant Agreement 1 (720270) / SIMULATIONS FOR THE
RECONSTRUCTION OF NERVE FIBERS BY 3D POLARIZED LIGHT IMAGING
$(jjsc24_20150501)$ / HBP SGA2 - Human Brain Project
Specific Grant Agreement 2 (785907) / Simulations for a
better Understanding of the Impact of Different Brain Tissue
Components on 3D Polarized Light Imaging
$(jjsc43_20181101)$},
pid = {G:(DE-HGF)POF3-574 / G:(DE-HGF)POF3-511 /
G:(DE-Juel1)HGF-SMHB-2013-2017 / G:(EU-Grant)720270 /
$G:(DE-Juel1)jjsc24_20150501$ / G:(EU-Grant)785907 /
$G:(DE-Juel1)jjsc43_20181101$},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30760789},
doi = {10.1038/s41598-019-38506-w},
url = {https://juser.fz-juelich.de/record/859132},
}