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Abstract:
Currently, connectomes (e.g., functional or structural brain graphs) can be estimated in humans at ≈ 1 mm 3 scale using a combination of diffusion weighted magnetic resonance imaging, functional magnetic resonance imaging and structural magnetic resonance imaging scans. This manuscript summarizes a novel, scalable implementation of open-source algorithms to rapidly estimate magnetic resonance connectomes, using both anatomical regions of interest (ROIs) and voxel-size vertices. To assess the reliability of our pipeline, we develop a novel non-parametric non-Euclidean reliability metric. Here we provide an overview of the methods used, demonstrate our implementation, and discuss available user extensions. We conclude with results showing the efficacy and reliability of the pipeline over previous state-of-the-art.
Date of Conference: 3-5 Dec. 2013
Date Added to IEEE Xplore: 13 February 2014
Electronic ISBN:978-1-4799-0248-4
INSPEC Accession Number: 14114113
Publisher: IEEE
Conference Location: Austin, TX, USA

I. Introduction

The ability to estimate a connectome, i.e. a description of connectivity in the brain of an individual, promises advances in many areas from personalized medicine to learning and education, and even to intelligence analysis [1], [2]. A robust analysis of these brain-graphs is on the horizon due to recent efforts to collect large amounts of multimodal magnetic resonance (M3R) imaging data [3], [4]. An ideal methodology would enable scalable computing of graphs and functionals thereof in a way that yields estimates that are reliable. Moreover, such a tool would be open source, and make the data it processes open source in a user friendly way.

References

References is not available for this document.