Abstract #0088
Accelerated Radial Diffusion Spectrum Imaging using a multi-echo stimulated echo diffusion sequence
Steven Baete 1,2 and Fernando Emilio Boada 1,2
1
Center for Biomedical Imaging, Dept. of
Radiology, NYU Langone Medical Center, New York, New
York, United States,
2
CAI2R,
Center for Advanced Imaging Innovation and Research, NYU
Langone Medical Center, New York, New York, United
States
Diffusion Spectrum Imaging (DSI) is able to
non-invasively image the microstructure of the brain,
including its complex distributions of intravoxel fiber
orientations. A drawback of DSI is the requirement for a
large number of q-space samples to adequately sample the
Orientation Diffusion Function, leading to large
measurement time. In order to accelerate DSI
acquisitions we use a multi-echo stimulated echo
diffusion sequence which samples multiple samples along
a radial line in q-space in a single readout. This is
combined with the recently proposed radial q-space
sampling scheme, leading to, in the current
configuration, a nearly fourfold speedup.
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