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@ARTICLE{Beiderwellen:119232,
author = {K. Beiderwellen and O. Kraff and A. Laader and S. Maderwald
and S. Orzada and M. Ladd$^*$ and M. Forsting and T. C.
Lauenstein and L. Umutlu},
title = {{C}ontrast enhanced renal {MR} angiography at 7 {T}esla:
{H}ow much gadolinium do we need?},
journal = {European journal of radiology},
volume = {86},
issn = {0720-048X},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {DKFZ-2017-00022},
pages = {76 - 82},
year = {2017},
abstract = {To investigate whether a dose reduction of Gadobutrol for
renal magnetic resonance angiography (MRA) at 7 Tesla (T) is
feasible while preserving diagnostic image quality.Ten
healthy volunteers were enrolled for a renal MRA on a 7T
scanner. Fast low angle shot (FLASH) MRA data sets were
obtained utilizing three different doses of Gadobutrol (0.1,
0.05 and 0.025mmol/kg body weight [BW]). Contrast ratios
(CR) were measured in the aorta as well as in the intra- and
extraparenchymal arteries compared to the psoas muscle.
Qualitative analysis regarding the delineation of vessel
structures was performed using a four-point-scale.All doses
of Gadobutrol allowed for a good delineation of the aorta
and renal arteries. For the extra- and intraparenchymal
segmental arteries higher values were observed for full and
half dose in comparison to quarter dose. No significant
difference was observed for full and half dose. A lower CR
was observed for quarter compared to half dose (p<0.05) for
the renal arteries.While best results were observed for half
and full dose, a dose reduction to 0.025mmol/kg BW is
justifiable, maintaining a diagnostic image quality. This
may be of high interest considering patients with renal
impairment.},
cin = {E020},
ddc = {610},
cid = {I:(DE-He78)E020-20160331},
pnm = {315 - Imaging and radiooncology (POF3-315)},
pid = {G:(DE-HGF)POF3-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:28027770},
doi = {10.1016/j.ejrad.2016.11.007},
url = {https://inrepo02.dkfz.de/record/119232},
}