MR Measurement of Breast Tissue's Anisotropic Mechanical Properties
Abstract
We are progressing well toward the original goals delineated in the grant. The MR sequences have been written to measure vibrations in all three directions. No attenuation of the vibration can be observed across a homogeneous sample. No vibration is seen in directions perpendicular to the induced vibration. These two results suggest that a simple linear model is appropriate. A linear model allows the elasticity to be calculated directly without elaborate calculations. This is encouraging. We have written and tested code to calculate the elasticity from measured phase changes assuming a linear model for the vibration. We are concentrating on increasing the phase changes by increasing the amplitude of the vibration and the strength of the magnetic field gradients.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1997
- Accession Number
- ADA332450
Entities
People
- John B. Weaver
Organizations
- Dartmouth College