Anisotropic similarity, a constrained affine transformation: Application to brain development analysis

Antoine Legouhy 1 Olivier Commowick 1 François Rousseau 2 Christian Barillot 1, *
* Corresponding author
1 VisAGeS - Vision, Action et Gestion d'informations en Santé
INSERM - Institut National de la Santé et de la Recherche Médicale : U1228, Inria Rennes – Bretagne Atlantique , IRISA_D5 - SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE
Abstract : The study of brain development provides insights in the normal trend of brain evolution and enables early detection of abnormalities. We propose a method to quantify brain growth in three arbitrary orthogonal directions of the brain through linear registration. We introduce a 9 degrees of freedom transformation that gives the opportunity to extract scaling factors describing brain growth along those directions by registering a database of subjects in a common basis. We apply this framework to create a longitudinal curve of scaling ratios along fixed orthogonal directions from 0 to 16 years highlighting anisotropic brain development.
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https://www.hal.inserm.fr/inserm-01871274
Contributor : Antoine Legouhy <>
Submitted on : Monday, September 10, 2018 - 3:31:01 PM
Last modification on : Tuesday, July 23, 2019 - 1:40:03 PM
Long-term archiving on : Tuesday, December 11, 2018 - 3:58:00 PM

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  • HAL Id : inserm-01871274, version 1

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Antoine Legouhy, Olivier Commowick, François Rousseau, Christian Barillot. Anisotropic similarity, a constrained affine transformation: Application to brain development analysis. ISMRM 2018, Jun 2018, Paris, France. pp.1. ⟨inserm-01871274⟩

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