Department of Bioengineering, University of Illinois, Chicago, United States
Research Article
Magnetic Resonance Elastography: Multi-Directional Excitation in a Table Top MRI System and Finite Element Simulations of Harmonic Excitation Experiments
Author(s): Federica Dibennardo* and Alberto Giarola
There is a strong connection between changes in mechanical properties and injuries or diseases. In order to detect the mechanical structure of tissue, techniques like biopsy and manual palpation were developed. However, these methods have many drawbacks. Biopsy is invasive and not reliable, while manual palpation is qualitative, superficial, and dependent on the operator. To address these limitations, elastography emerged as a non-invasive and quantitative way to assess tissue stiffness. This study aimed to explore the use of torsionally-polarized geometrically-focused waves induced by a stepper motor on a test tube, and to investigate whether wave propagation changes when a pre-stretch is applied to the phantom. To achieve this, the study designed a new arrangement where a cylindrical sample was suspended freely in the MRI, allowing for different axial tensile pre-stresses to be appl.. View More»
DOI:
10.35248/2322-3308.25.14(1).004
