Abstract #2660
Feasibility and Signal Analysis of DANTE-TSE with Variable Flip Angles for Intracranial Vessel Wall Imaging at 7 Tesla
Olivia Viessmann 1 , Linqing Li 1 , and Peter Jezzard 1
1
Nuffield Department of Clinical
Neurosciences, Oxford Centre for Functional Magnetic
Resonance Imaging of the Brain, Oxford, United Kingdom
DANTE is a low flip angle preparation module for
black-blood and CSF suppression. In combination with a
TSE with variable flip angle (SPACE) it is suitable for
intracranial vessel wall imaging. Low flip angle methods
are particularly important at 7 Tesla where SAR limits
the application of sequences using large flip angles for
blood and CSF nulling. We implemented DANTE-SPACE at 7
Tesla and analysed the signal loss due to brain
movement, the effect of B1 inhomogeneity and relaxation
time variations on the signal level. A clinically
relevant protocol for intracranial vessel wall imaging
is presented.
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