Abstract #4481
A New Algorithm to Estimate the Mean of A Group of Tract Bundles
Hsu Yung-Chin 1 and Tseng Isaac Wen-Yih 1,2
1
Center for Optoelectronic Medicine, College
of Medicine, National Taiwan University, Taipei, Taipei,
Taiwan,
2
Graduate
Institute of Brain and Mind Sciences, College of
Medicine, National Taiwan University, Taipei, Taiwan
In the study, we propose a new algorithm to iteratively
estimate the mean shape of a group of tract bundles. The
basic idea of our algorithm is: performing registration
on tract bundles and taking the average on orientation
maps. The conversion from orientation maps to tract
bundles is achieved via fiber-tracking algorithms, and
the reverse way is via modeling the tract bundles as
currents. The algorithm is demonstrated on ten right
cingulum bundles, and the results show that this method
could properly estimate the mean cingulum bundle. This
method has the potential to facilitate computational
anatomy of the brain.
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