Abstract #2959
Model-independent arterial transit time mapping using pseudo-continuous ASL
Toralf Mildner 1 , Kathrin Lorenz 1,2 , and Harald E. Mller 1
1
Max Planck Institute for Human Cognitive and
Brain Sciences, Leipzig, Saxony, Germany,
2
Faculty
of Physics and Earth Sciences, University of Leipzig,
Saxony, Germany
Mapping of Arterial Transit time by Intravascular Signal
SElection (MATISSE) was introduced to obtain arterial
transit times directly from temporal shifts of ASL time
series acquired with short TR intervals. The RF power
applied to a neck labeling coil was modulated for
successive repetitions. The current work adopts this
strategy to single-coil pseudo-continuous ASL by
modulating the RF phase offset accordingly and, thereby,
creating a smooth transition between zero and maximum
labeling efficiency. Model-independent evaluation of the
resulting ASL time series yielded arterial transit time
maps that show reasonable patterns of human vascular
territories including their border zones.
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