Abstract
Since the advent of high angular resolution diffusion imaging (HARDI) techniques in diffusion MRI great efforts have been taken in order to reconstruct complex white-matter structures, such as crossing, branching and kissing fibers. However, even highly sophisticated fiber tracking schemes, such as probabilistic tracking, suffer from the data’s poor signal-to-noise (SNR) ratio. In this paper we present a novel regularization approach for q-ball fields, exploiting structural information within the data. We also propose a straightforward deterministic tracking algorithm, allowing delineation of even non-dominant pathways through crossing regions. Results from a phantom study with a biological phantom as well as a patient study, in which we reconstruct the pyramidal tract, emphasize the method’s efficiency.
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Ehricke, HH., Otto, K.M., Kumar, V., Klose, U. (2009). Diffusion MRI Tractography of Crossing Fibers by Cone-Beam ODF Regularization. In: Denzler, J., Notni, G., Süße, H. (eds) Pattern Recognition. DAGM 2009. Lecture Notes in Computer Science, vol 5748. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03798-6_42
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DOI: https://doi.org/10.1007/978-3-642-03798-6_42
Publisher Name: Springer, Berlin, Heidelberg
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