83. ULTRASOUNDS: ELASTOGRAPHY

Question 1

1. What does the compressibility of tissue indicate?

Answer 1

• it can indicate the well-being of the tissue

Question 2

2. What does compressibility of the tissue refer to?

Answer 2

• it refers to how stiff the tissue is
• this can indicate if the tissue has some kind of
  pathological condition

Question 3

3. What is Elastography?

Answer 3

• this is also known as Elastic Imaging
• it reveals the tissue elasticity parameters directly

NB:
- standard ultrasounds cannot do this

Question 4

4. What can be said about the stiffness of cancerous tumours?

Answer 4

• they are much more stiff than the surrounding tissues

Question 5

5. How does an Elastography work?

Answer 5

1. Image the organ before you compress it
2. Image the organ while it is under a known amount of
   stress
3. Find the Resultant Strain

Question 6

6. What happens to a soft object when it is put in an Elastograhy situation?

Answer 6

• the soft object compresses

Question 7

7. What happens to a hard object when it is put in an Elastograhy situation?

Answer 7

• the hard object is displaced forward

Question 8

8. What can be seen in this image?

Answer 8

THE BLUE COLOUR:
- shows the soft tissue

THE RED COLOUR:
- shows the hard tissues