Abstract #1921
Disentangling different Gadolinium concentrations: a comparison between High Field and Very Low Field MRI.
Allegra Conti 1 , Massimo Caulo 1,2 , Angelo Galante 3 , Vittorio Pizzella 1,2 , Gian Luca Romani 1,2 , and Stefania Della Penna 1,2
1
Department of Neuroscience, Imaging and
Clinical Sciences, G. D'Annunzio Univ. of Chieti and
Pescara, Chieti, CH, Italy,
2
Institute
for Advanced Biomedical Technologies (ITAB), G.
D'Annunzio Univ. of Chieti and Pescara, Chieti, CH,
Italy,
3
MESVA,
Department of Life, Health & Environmental Sciences,
L'Aquila University, L'Aquila, AQ, Italy
Gadolinium based Contrast Agents are routinely used in
MRI to improve the diagnostic accuracy of brain
pathologies. Recently, Very and Ultra Low Field-MRI
scanners have been developed, and the advantages of
these system in the study of tissue contrast have been
suggested. Here we show how the contrast of T1-weighted
images of different concentrations of MultiHance and
Gadovist changes varying the applied field (8.9 mT, 0.2
T, 1. 5 T ,3 T). Results demonstrate that signal
contrast does not improve at high field strengths, and
that longitudinal relaxation rate-maps at ULF are the
best instruments to distinguish different
Gd-concentrations.
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