Anisotropy of HARDI diffusion profiles based on the L2-norm

Landgraf, Philipp; Merhof, Dorit; Richter, Mirco

Anisotropy of HARDI diffusion profiles based on the L2-norm

Dateien

Merhof etal.pdfGröße: 5.23 MBDownloads: 524

Datum

2011

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Informatik und Informationswissenschaft

Publikationstyp

Beitrag zu einem Konferenzband

Publikationsstatus

Published

Erschienen in

HANDELS, Heinz, ed., Jan EHRHARDT, ed., Thomas M. DESERNO, ed., Hans-Peter MEINZER, ed., Thomas TOLXDORFF, ed.. Bildverarbeitung für die Medizin 2011. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011, pp. 239-243. Informatik aktuell. ISBN 978-3-642-19334-7. Available under: doi: 10.1007/978-3-642-19335-4_50

Zusammenfassung

The fractional anisotropy (FA) value for Diffusion Tensor Imaging is widely used to determine the anisotropy of diffusion in a given voxel. As the FA value is based on the tensor’s eigenvectors it is not possible to calculate this quantity for HARDI diffusion profiles. In this paper we introduce an anisotropy index for HARDI data that utilizes the L2-norm as the most natural notion of distance for square-integrable functions on the two-sphere such as HARDI diffusion profiles and show that it is the limit of the generalized fractional anisotropy (GFA) index. Our index is well-defined and rotationally invariant and thus resolves the unsatisfactory issues with the GFA index.

Fachgebiet (DDC)

004 Informatik

Zitieren

ISO 690

LANDGRAF, Philipp, Dorit MERHOF, Mirco RICHTER, 2011. Anisotropy of HARDI diffusion profiles based on the L2-norm. In: HANDELS, Heinz, ed., Jan EHRHARDT, ed., Thomas M. DESERNO, ed., Hans-Peter MEINZER, ed., Thomas TOLXDORFF, ed.. Bildverarbeitung für die Medizin 2011. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011, pp. 239-243. Informatik aktuell. ISBN 978-3-642-19334-7. Available under: doi: 10.1007/978-3-642-19335-4_50

BibTex

@inproceedings{Landgraf2011-03-13Aniso-17640,
  year={2011},
  doi={10.1007/978-3-642-19335-4_50},
  title={Anisotropy of HARDI diffusion profiles based on the L2-norm},
  isbn={978-3-642-19334-7},
  publisher={Springer Berlin Heidelberg},
  address={Berlin, Heidelberg},
  series={Informatik aktuell},
  booktitle={Bildverarbeitung für die Medizin 2011},
  pages={239--243},
  editor={Handels, Heinz and Ehrhardt, Jan and Deserno, Thomas M. and Meinzer, Hans-Peter and Tolxdorff, Thomas},
  author={Landgraf, Philipp and Merhof, Dorit and Richter, Mirco}
}

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