Sebastian
Papazoglou1, Sebastian Hirsch1, Dieter Klatt1,
Kaspar Josche Streitberger1, Kerstin Riek1, Thomas
Elgeti1, Jrgen Braun2, Ingolf Sack1
1Institute of Radiology, Charit -
University Medicine
In
this study we present a statistical analysis of shear wave intensity speckles
in magnetic resonance elastography (MRE). The employed statistical model
provides a single fit parameter that is related to characteristic
structure-related length scales. Hence, the intensity speckle distribution
offers the possibility to investigate the elastic heterogeneity of the brain
without solving the ill-posed inverse problem associated with shear wave
propagation. Results of speckle intensity MRE experiments on gel phantoms and
the brain of a healthy subject demonstrate the feasibility of the proposed
statistical analysis.
Keywords