Random noise in Diffusion Tensor Imaging, its Destructive Impact and Some Corrections

Hahn, Klaus; Prigarin, Sergej; Heim, Susanne und Hasan, Khader (2005): Random noise in Diffusion Tensor Imaging, its Destructive Impact and Some Corrections. Sonderforschungsbereich 386, Discussion Paper 459

Abstract

The empirical origin of random noise is described, its influence on DTI variables is illustrated by a review of numerical and in vivo studies supplemented by new simulations investigating high noise levels. A stochastic model of noise propagation is presented to structure noise impact in DTI. Finally, basics of voxelwise and spatial denoising procedures are presented. Recent denoising procedures are reviewed and consequences of the stochastic model for convenient denoising strategies are discussed.

• Dokumententyp: Paper
• Fakultät: Mathematik, Informatik und Statistik > Statistik > Sonderforschungsbereich 386 ; Sonderforschungsbereiche > Sonderforschungsbereich 386
• Themengebiete: 500 Naturwissenschaften und Mathematik > 510 Mathematik
• Sprache: Englisch