Week 7 Elastography Flashcards
1
Q
What is the basics of elastography?
A
tool used in diseased tissues e.g. tumours, with areas stiffer than surrounding normal tissue
2
Q
What does Strain do?
A
Provides information on strain-estimation of elastic modulus. However, is challenging and only done in labs.
3
Q
strain relies on…. and measurement of the…..
A
- compression of tissues
2. Resulting tissue deformation & strain
4
Q
Strain is also known as what?
A
Static method
5
Q
What does shear-wave technique rely on?
A
generation of shear waves & measurement of shear wave VEL
6
Q
What can be estimated with shear wave technique?
A
Elastic modulus
7
Q
list the 3 main points of what elastography is.
A
- tissue to resist deformation w/ applied force & transform back to original shape after force removal
- Imaging modality mapping elastic properties & properties of soft tissue
- Recent technique - pathological process alters the elastic properties of tissue
8
Q
Describe Hooke’s Law
A
states that strain in solid is proportional to applied stress w/ elastic limit of that solid.
