Abstract #0334
High angularly resolved diffusion imaging with accelerated multi-shot acquisition and compressed sensing
Tzu-Cheng Chao 1,2 , Jr-Yuan George Chiou 3 , Stephan E. Maier 3 , and Bruno Madore 3
1
Department of Computer Science and
Information Engineering, National Cheng-Kung University,
Tainan, Taiwan,
2
Institute
of Medical Informatics, Naitonal Cheng-Kung University,
Tainan, Taiwan,
3
Department
of Radiology, Brigham and Women's Hospital, Harvard
Medical School, Boston, Massachusetts, United States
High angularly resolved diffusion imaging is a
well-established strategy to help resolve fiber
crossings and enable tractography. Long scan times and
the presence of geometrical distortion in the resulting
images may be the main factors currently limiting its
clinical use. In the present work, methods are combined
for accelerating the acquisition process in k-space (to
reduce distortion) as well as in the diffusion-encoding
space (to reduce scan time). As compared to a
non-accelerated protocol, results are presented that
offer a four-fold reduction in distortion as well as a
reduction by about 40% in scan time.
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