Abstract #2336
Robust Inter-Pulse Phase Correction for Brain Perfusion Imaging at Very High Field using Pseudo-Continuous Arterial Spin Labeling (pCASL)
Lydiane Hirschler 1,2 , Clment Stphan Debacker 1,2 , Jrme Voiron 2 , Jan Warnking 1,3 , and Emmanuel Luc Barbier 1,3
1
Universit Grenoble Alpes, Grenoble Institut
des Neurosciences, Grenoble, France,
2
Bruker
Biospin, Ettlingen, Germany,
3
Inserm,
U836, Grenoble, France
Performing pseudo-continuous arterial spin labeling
(pCASL) at very high magnetic field is challenging as B0
inhomogeneities at the labeling plane, away from the
isocenter, strongly affect the spins phase and thus
inversion efficiency. This study shows that, for an
unbalanced pCASL, performing a label and a control phase
increment correction improves perfusion signal, corrects
asymmetry between brain hemispheres arising when
labeling far from isocenter at high field, and preserves
high image quality at the same time.
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