Magnetoelastic volume shear waves in a periodic layered medium of the ferrite-metal-dielectric type

1995 ◽  
Vol 31 (5) ◽  
pp. 346-350
Author(s):  
V. V. Levchenko
Keyword(s):  
Layered Medium ◽  
Shear Waves

Magnetoelastic surface shear waves in a regularly layered medium

1987 ◽  
Vol 23 (3) ◽  
pp. 207-211
Author(s):  
V. V. Levchenko ◽  
N. A. Shul'ga
Keyword(s):  
Layered Medium ◽  
Shear Waves ◽  
Surface Shear ◽  
Magnetoelastic Surface

Dispersion relations for electroelastic shear waves in a periodically layered medium

1990 ◽  
Vol 26 (11) ◽  
pp. 1092-1099 ◽  
Author(s):  
L. P. Zinchuk ◽  
A. N. Podlipenets ◽  
N. A. Shul'ga
Keyword(s):  
Layered Medium ◽  
Shear Waves ◽  
Dispersion Relations

Propagation of magnetoelastic shear waves across layers in a periodically layered medium

2006 ◽  
Vol 42 (6) ◽  
pp. 655-660 ◽  
Author(s):  
N. A. Shul’ga ◽  
V. V. Levchenko ◽  
T. V. Ratushnyak
Keyword(s):  
Layered Medium ◽  
Shear Waves

scholarly journals Lorentz force induced shear waves for magnetic resonance elastography applications

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Guillaume Flé ◽  
Guillaume Gilbert ◽  
Pol Grasland-Mongrain ◽  
Guy Cloutier
Keyword(s):  
Magnetic Resonance ◽  
Shear Wave ◽  
Lorentz Force ◽  
Wave Attenuation ◽  
Shear Waves ◽  
Estimation Method ◽  
Biological Tissues ◽  
Magnetic Resonance Elastography ◽  
Motion Generation ◽  
Wave Source

AbstractQuantitative mechanical properties of biological tissues can be mapped using the shear wave elastography technique. This technology has demonstrated a great potential in various organs but shows a limit due to wave attenuation in biological tissues. An option to overcome the inherent loss in shear wave magnitude along the propagation pathway may be to stimulate tissues closer to regions of interest using alternative motion generation techniques. The present study investigated the feasibility of generating shear waves by applying a Lorentz force directly to tissue mimicking samples for magnetic resonance elastography applications. This was done by combining an electrical current with the strong magnetic field of a clinical MRI scanner. The Local Frequency Estimation method was used to assess the real value of the shear modulus of tested phantoms from Lorentz force induced motion. Finite elements modeling of reported experiments showed a consistent behavior but featured wavelengths larger than measured ones. Results suggest the feasibility of a magnetic resonance elastography technique based on the Lorentz force to produce an shear wave source.

Sign in / Sign up

Export Citation Format

Share Document