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@ARTICLE{Perosa:257557,
author = {Perosa, Valentina and Rotta, Johanna and Yakupov, Renat and
Kuijf, Hugo J and Schreiber, Frank and Oltmer, Jan T and
Mattern, Hendrik and Heinze, Hans-Jochen and Düzel, Emrah
and Schreiber, Stefanie},
title = {{I}mplications of quantitative susceptibility mapping at 7
{T}esla {MRI} for microbleeds detection in cerebral small
vessel disease.},
journal = {Frontiers in neurology},
volume = {14},
issn = {1664-2295},
address = {Lausanne},
publisher = {Frontiers Research Foundation},
reportid = {DZNE-2023-00437},
pages = {1112312},
year = {2023},
abstract = {Cerebral microbleeds (MBs) are a hallmark of cerebral small
vessel disease (CSVD) and can be found on T2*-weighted
sequences on MRI. Quantitative susceptibility mapping (QSM)
is a postprocessing method that also enables MBs
identification and furthermore allows to differentiate them
from calcifications.We explored the implications of using
QSM at submillimeter resolution for MBs detection in
CSVD.Both 3 and 7 Tesla (T) MRI were performed in elderly
participants without MBs and patients with CSVD. MBs were
quantified on T2*-weighted imaging and QSM. Differences in
the number of MBs were assessed, and subjects were
classified in CSVD subgroups or controls both on 3T
T2*-weighted imaging and 7T QSM.48 participants [mean age
(SD) 70.9 (8.8) years, $48\%$ females] were included: 31
were healthy controls, 6 probable cerebral amyloid
angiopathy (CAA), 9 mixed CSVD, and 2 were hypertensive
arteriopathy [HA] patients. After accounting for the higher
number of MBs detected at 7T QSM (Median = Mdn; Mdn7T-QSM =
2.5; Mdn3T-T2 = 0; z = 4.90; p < 0.001) and false positive
MBs $(6.1\%$ calcifications), most healthy controls
$(80.6\%)$ demonstrated at least one MB and more MBs were
discovered in the CSVD group.Our observations suggest that
QSM at submillimeter resolution improves the detection of
MBs in the elderly human brain. A higher prevalence of MBs
than so far known in healthy elderly was revealed.},
keywords = {7 Tesla MRI (Other) / cerebral amyloid angiopathy (CAA)
(Other) / cerebral small vessel disease (CSVD) (Other) /
hypertensive arteriopathy (HA) (Other) / microbleeds (Other)
/ quantitative susceptibility mapping (QSM) (Other)},
cin = {AG Schreiber / AG Düzel 3 ; AG Düzel ; AG Düzel / AG
Reymann},
ddc = {610},
cid = {I:(DE-2719)1310010 / I:(DE-2719)5000006 /
I:(DE-2719)1310005},
pnm = {353 - Clinical and Health Care Research (POF4-353) / 352 -
Disease Mechanisms (POF4-352)},
pid = {G:(DE-HGF)POF4-353 / G:(DE-HGF)POF4-352},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37006483},
pmc = {pmc:PMC10050564},
doi = {10.3389/fneur.2023.1112312},
url = {https://pub.dzne.de/record/257557},
}