Diffusionsgewichtete MRT zur Erkennung einer Richtung von mindestens einer Faser in einem Körper

Details

Veröffentlichungs-Nr.

EP2458397

Aktenzeichen

EP10306290

Anmeldetag

24. November 2010

Veröffentlichung

16. November 2016

Erteilung

16. November 2016

Rechtsraum

EP

IPC

G01R33/563G01N24/08

Abstract

The invention concerns a method to extract a diffusion direction from DW-MR signals, in which a magnetic field gradient qi is applied to a body part, a magnetic resonance signal Si is measured and a diffusion direction µ j is determined. The invention is characterized in that for a predetermined positive number m of diffusion direction(s) µ j the signals Si are linked to the probability density function of the random vector X of water molecules displacements represented as a mixture of m probability density functions pxj of random vectors Xj characterizing the diffusion along µ j , the Xj being decomposed into a first component modelling directional variability of the water molecules displacements with µ j as mean direction, and into a second component modelling the length variability of the water molecules displacements along µ j .

Anmelder

Firmen

Université de Rennes 1
Centre National de la Recherche Scientifique (C.N.R.S.)
INRIA - Institut National de Recherche en Informatique et en Automatique
Centre National de la Recherche Scientifique (CNRS)
Institut National de Recherche en Informatique et en Automatique

Land

🇫🇷 Frankreich

Fachgebiete