Abstract #2860
Improved in-vivo reconstruction of the auditory pathway using high spatial resolution diffusion MRI
Tyler Rehbein 1 , Michelle Moerel 2 , Frederico De Martino 3 , An Vu 2 , Essa Yacoub 2 , and Christophe Lenglet 2
1
University of Minnesota Medical School,
Minneapolis, MN, United States,
2
Center
for Magnetic Resonance Research, Department of
Radiology, University of Minnesota, Minneapolis, MN,
United States,
3
Department
of Psychology and Neuroscience, Maastricht University,
Maastricht, Netherlands
This study compares high-resolution 3 tesla (3T) and 7
tesla (7T) diffusion MRI data from the Human Connectome
Project (HCP) using probabilistic tractography to look
for reductions in spurious connections and improvements
in central auditory pathway characterization. Auditory
cortex identified using a probabilistic atlas in 2
subjects used as a seed along with manually segmented
waypoints in the medial geniculate nucleus and inferior
colliculus successfully characterized central auditory
pathways. The auditory radiation and colliculogeniculate
pathways were identified with 3T and 7T diffusion data,
and subcollicular pathways were also successfully traced
with 7T diffusion data.
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