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@ARTICLE{Zhang:865379,
author = {Zhang, Ke and Yun, Seong Dae and Triphan, Simon M. F. and
Sturm, Volker J. and Buschle, Lukas R. and Hahn, Artur and
Heiland, Sabine and Bendszus, Martin and Schlemmer,
Heinz-Peter and Shah, N. Jon and Ziener, Christian H. and
Kurz, Felix T.},
title = {{V}essel architecture imaging using multiband
gradient-echo/spin-echo {EPI}},
journal = {PLOS ONE},
volume = {14},
number = {8},
issn = {1932-6203},
address = {San Francisco, California, US},
publisher = {PLOS},
reportid = {FZJ-2019-04864},
pages = {e0220939 -},
year = {2019},
abstract = {ObjectivesTo apply the MB (multiband) excitation and
blipped-CAIPI (blipped-controlled aliasing in parallel
imaging) techniques in a spin and gradient-echo (SAGE) EPI
sequence to improve the slice coverage for vessel
architecture imaging (VAI).Materials and methodsBoth MB
excitation and blipped-CAIPI with in-plane parallel imaging
were incorporated into a gradient-echo (GE)/spin-echo (SE)
EPI sequence for simultaneous tracking of the dynamic MR
signal changes in both GE and SE contrasts after the
injection of contrast agent. MB and singleband (SB)
excitation were compared using a 20-channel head coil at 3
Tesla, and high-resolution MB VAI could be performed in 32
glioma patients.ResultsWhole-brain covered high resolution
VAI can be achieved after applying multiband excitation with
a factor of 2 and in-plane parallel imaging with a factor of
3. The quality of the images resulting from MB acceleration
was comparable to those from the SB method: images were
reconstructed without any loss of spatial resolution or
severe distortions. In addition, MB and SB signal-to-noise
ratios (SNR) were similar. A relative low g-factor induced
from the MB acceleration method was achieved after using a
blipped-CAIPI technique (1.35 for GE and 1.33 for SE
imaging). Performing quantitative VAI, we found that, among
all VAI parametric maps, microvessel type indicator (MTI),
distance map (I) and vascular-induced bolus peak-time shift
(VIPS) were highly correlated. Likewise, VAI parametric maps
of slope, slope length and short axis were highly
correlated.ConclusionsMultiband accelerated SAGE
successfully doubles the number of readout slices in the
same measurement time when compared to conventional readout
sequences. The corresponding VAI parametric maps provide
insights into the complexity and heterogeneity of vascular
changes in glioma.},
cin = {INM-4 / JARA-BRAIN},
ddc = {610},
cid = {I:(DE-Juel1)INM-4-20090406 / $I:(DE-82)080010_20140620$},
pnm = {573 - Neuroimaging (POF3-573)},
pid = {G:(DE-HGF)POF3-573},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31398234},
UT = {WOS:000485004000029},
doi = {10.1371/journal.pone.0220939},
url = {https://juser.fz-juelich.de/record/865379},
}