Aimé Labbé1, Rose-Marie Dubuisson1, Jean-Christophe Ginefri1, Cornelis J van des Beek2, Luc Darrasse1, and Marie Poirier-Quinot1
1Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Orsay, France, 2Université Paris-Saclay, CNRS Center for Nanoscience and Nanotechnology, Palaiseau, France
1Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, Orsay, France, 2Université Paris-Saclay, CNRS Center for Nanoscience and Nanotechnology, Palaiseau, France
B0 artefacts due to HTS coils are investigated. Images acquired after
zero-field cooling of the coil displayed signal loss and phase perturbation at
low temperature (60 K), whereas images acquired after cooling inside the
MRI were unaffected.
Fig. 3 ― Unwrapped
phase images in the coronal plane, 4.2 mm above the HTS coil, at different
temperatures.
Fig. 2 ― Phase
images at T = 58 K after (a) zero-field cooling and (b) field cooling. The
coronal slice is located ~ 4.2 mm above the HTS coil. (a) was obtained after 2
averages, whereas (b) was obtained for 1 average, which explains the lower SNR
in (b).
